Nagasarete Airantou

Nagasarete Airantō (ながされて藍蘭島, literally "Cast Away... Airan Island") is an ongoing manga with 33 tankōbon volumes as of April 2019. It was made into three-volume light novel series in 2004-2007 and a 26-episode anime in 2007.

Ikuto Touhouin runs away from home after a fight with his father and boards a ship. After falling overboard during a huge storm, he washes ashore on a mysterious island inhabited by only women, with no escape. With a guy on the island at last, now everyone is determined to make him their husband.

"Chibi Machi pawns all!"
 * The Ace: Suzu.
 * A-Cup Angst: Ayane.
 * Abusive Dad: Ikuto's.
 * Accidental Kiss: Ikuto to.
 * Accidental Pervert: As much as he tries to avoid an "eyeful" (or a handful, or a faceful, or...yeah, we'd better stop now) Ikuto still crosses into this.
 * Action Girl: Pretty much every girl in the island.
 * Acquired Poison Immunity: After Ikuto accidentally drinks from the wrong cup, Kokoro reveals that she has been putting poison into her daughter's drinks and food for years to gain this affect.
 * Adam and Eve Plot: See below.
 * All There in the Manual: Listen to the Drama CD 1 To Know More!
 * All Your Powers Combined: Weather Charm 1-2-3-Shikis' Muramasa.
 * Always a Bigger Fish: A literal example.
 * Always Someone Better: Suzu to Ayane.
 * Also, Machi to Ayane.
 * This is probably more of a Stronger Sibling case.
 * An Ice Person: The Yuki-onnas.
 * Apologetic Attacker: Mei Mei.
 * Apologizes a Lot: Mei Mei, again.
 * Arbitrary Skepticism: Ikuto has gradually become accustomed to talking with the anthropomorphic animals on the island, yet still refuses to believe in anything of paranormal or mythological origin even if it is right in front of him.
 * He doesn't have any problems believing in Aliens and Robot Girls either.
 * He winds up on the other end of the spectrum, when he tries to convince the islanders on the existence of the aforementioned aliens.
 * Ikuto did have trouble believing in the anthropomorphic aspect of Airantou's animals, but that quickly died away when Shima-tora made a..."convincing" argument.
 * A recent chapter had Ikuto get sick and get a fever which made him start to believe in magic. Then when he was still recovering he started to mix science fact with magic, and then he freaked out when he realized what he was saying.
 * It's revealed later that Ikuto to make him disbelieve in magic. After that's broken, Ikuto casually mentions the Touhouin family has a history of interaction with the supernatural, so there was apparently some Laser-Guided Amnesia involved, too.
 * Art Shift: During Michiru and Tohno's confrontation, they emanate a Battle Aura that shows them how they should look like outside of Airantou.
 * Aside Glance: Among many other examples:
 * Art Shift: During Michiru and Tohno's confrontation, they emanate a Battle Aura that shows them how they should look like outside of Airantou.
 * Aside Glance: Among many other examples:

"Mei Mei: No one under 18 allowed to see!"
 * Asskicking Equals Authority: The Four Leaders.
 * Klingon Promotion
 * Absurdly Youthful Mother: The first mother introduced is Chizuru, Machi and Ayane's mother (and to the hilarious reaction by Ikuto by this revelation). We then found out that the women marry at young ages since their life-style's that of the Fedual Era. Chizuru is the first to have children at her age. And thus, Machi being the oldest with a Christmas Cake issue.
 * Attack Its Weak Point: How Ikuto defeats
 * Author Appeal: Single male, on an isolated island with only females, most of them are pretty and young? Come on.
 * Badass Normal: Ikuto the most because he fights the most, but any Badass who is not a Miko, Ninja, or Youkai.
 * Some may be on the border line of Charles Atlas Superpower though.
 * Badass Abnormal:
 * Badass Adorable: Most of them count.
 * Badass Automaton: Sakuya.
 * Badass Bookworm: Chikage.
 * Bad Luck Charm: The Muramasa Broom.
 * Badly-Battered Babysitter: Yukino to Taka-Taka's illegitimate child nephew.
 * Bag of Holding: In the manga, this was lampshaded a bit.
 * Balloon Belly: Suzu in episode 2.
 * Ikuto when Suzu tries to give him CPR when he first washes ashore.
 * Bamboo Technology: Ikuto introduces the Ice Box to the island. The islanders use Michiru to create the ice for the boxes though.
 * Batman Gambit: The Scavenger Hunt Story Arc doesn't count on its own at first; it took the aftermath chapter to show it to be one.
 * Battle Aura: Apparently, all the Leaders are supposed to possess this.
 * Youkais, too.
 * Oh, poor Mei-Mei.
 * The Beard: Machi goes on a fake date with Ikuto to get Hikaru Genji to stop pursuing her.
 * Berserk Button
 * Telling Ikuto anything is "impossible".
 * Getting between Suzu and mame daifuku is pretty stupid.
 * Insulting Machi about her age once, shame on her; insulting Machi about her age consecutively, prepare for the  worst.
 * Taiga is very protective...of the sakura tree in his territory.
 * Beware the Nice Ones: Suzu. When she becomes clingy, even her sensei (one of the Four Leaders, mind you) is afraid of her!
 * Big Badass Bird of Prey: Taka-Taka. In his youth, he was even a contender for the position of the West Leader, and a friendly rival to the current one.
 * Big Bad Wannabe/Ineffectual Sympathetic Villain: The Kami Kami group, a pair of foxes that want to usurp the Leaders' position, but are downright pathetic in strength and skill.
 * Big Damn Heroes: Ikuto gets one saving Ayane and Michiru from an enraged Taiga, the North Leader, by throwing his sword to hit Taiga's weak point.
 * He also brought lunch.
 * Ikuto and Suzu also rescued Yukino, and Taka-Taka's nephew Piyomaru, from the Kami Kami group in the best dramatic style.
 * Big Eater: Machi
 * Big Fancy House: Chikage's.
 * Big Sister Instinct: Tohno towards Mei Mei.
 * Brick Joke: Two in the first Beniyasha Story Arc, both involving the hot springs.
 * 1) When we first see the haremettes in Sakuya's hotsprings, they all decide to wash themselves silly for the sole reason of Ikuto staying under the same roof as them. Things happen, and then we later see the girls have overscrubbed themselves to the point of having rashes.
 * 2) Later the girls decide to spring a trap for Ikuto so that they can join him in the hotsprings. Chikage, who was supposed to lead Ikuto into the trap, completely forgets about them when the plot picks up. What happens when you spend too long in the hotsprings again?
 * Speaking of Beniyasha, the Flash Back Story Arc shows that Kagami is deathly afraid of the prankster In the second Beniyasha arc, we have a little throwaway scene showing that Kagami is still afraid of Beniyasha.
 * One would never expect Ikuto's nosebleed to, would you?
 * Similarly, Taiga's weakness
 * During Tonkatsu's errand to go to Shima-tora alone, Suzu (who was following Tonkatsu), runs into a lost Shinobu, completely immobile because of hunger. Suzu promises to Shinobu that she will come back for her. As shown in chapter 65 here, Suzu didn't make good on that promise.
 * Bridal Carry: Ikuto does this to Machi when Hikaru Genji attacks them during their fake date. Unlike many instances of this trope with Action Girl Machi is fine with Ikuto carrying her like that. Then again the whole thing is part of her Batman Gambit...
 * Brilliant but Lazy: Machi; a highly-gifted Miko, but...yeah.
 * To a larger extent, Michiru.
 * Brother-Sister Incest: Misaki seemed to act like her brother was her boyfriend in many of the flashbacks. Ikuto seems to think that normal sisters just do that.
 * Possibly a case of Not Blood Siblings considering one of the flashbacks revealed a weird age discrepancy. There is less than 9 months between them in terms of age. She seems pretty irked that Ikuto never noticed.
 * Butt Monkey: Ayane, for the most part. She gets stepped on constantly, for instance.
 * She is such a Butt Monkey that she thinks that the blood sucking plant is just playing when it is gnawing on her face. She lets it do it every day.
 * She also fails to notice the effects of a Bad Luck Charm because her luck is already terrible.
 * Michiru, after her initial introduction was often stepped on, forgotten by the characters, or simply not noticed. Around the same time, Ayane started getting more competent.
 * Cosmic Plaything: The author likes to even directly poke fun at Michiru. Hello, Table of Contents!
 * Being a Harem male protagonist Ikuto gets the stuffing beat out of him on a fairly regular basis.
 * One episode of the anime puts Ikuto's status as the Butt Monkey Up to Eleven.
 * The East Leader, in most of his appearances, seems to have some sort of bad luck...
 * Call Back: Several in the story. The author really knows his series.
 * The man with the top hat on the boat in Obaba's flashback is the same man who stopped the old way of of determining the ruler of the South Forest. He also built Chikage's mansion. He is also hinted at being Rin's ancestor!
 * Remember Chikage's floating chair? Well it makes a few more appearances.
 * Calling Your Attacks: Karaage mostly, but a few others.
 * Can't Act Perverted Toward a Love Interest: Rin's father Tadanori.
 * Can't Hold Her Liquor: Risa.
 * Carnivore Confusion: All animals on the island can talk for some reason, so humans eat fish instead. Eggs are still fair game, though, making it a little awkward when a hen has a friendly chat with the male lead before handing over a basket of hers...
 * This was particularly unsettling when Ick.
 * Catgirl: Suzu, who is on very good terms with the cats and spent some time being trained by their Leader, wears a bow that seems to only be there to give the impression of cat ears in certain shots, sometimes makes feline sounds when excited or scared, and a cat-like aura appears whenever she goes Yandere (inherited from her mother). This is played even straighter when she turns into a cat for the human-animal transformation episode.
 * Also, Shima-tora's wife Myaa (see Voluntary Shapeshifting below).
 * Cat Eared Headband: A few times with Chikage's cosplay obsession.
 * Celibate Hero: Ikuto makes it apparent from the beginning that he doesn't want to get romantically involved with any of the girls in his Unwanted Harem. For now, that is...
 * Charles Atlas Superpower: Rin is the most primary example in the series.
 * Chinese Girl: Mei Mei
 * Christmas Cake: Values Dissonance has Airantou's inhabitants get married at around 14–15 years of age. Therefore, apparently, it's an issue for those who are well "over" that age. Not worth it mentioning "who" exactly, though...
 * Clingy Jealous Girl: The most interesting variant of which is Suzu herself, who doesn't know what she is being jealous about... Also when she becomes jealous she wants to take a bath with him. Not to do anything, just bathe together.
 * Because Ikuto said she is cute when she smiles, she tries to curtail her jealous tendencies later on.
 * While it can also be alternately interpreted as a protective instinct towards Suzu, Ikuto inverts the usual situation by reacting very badly on
 * displays many jealous tendencies and starts to follow him around a lot more.
 * Cosplay Otaku Girl: Chikage has an...interesting "source" for her different ideas of clothing when impressing Ikuto, it seems.
 * Covert Pervert: Mei Mei plays this trope as straight as possible, with her erotic book reading and what she thinks will happen anytime a girl is alone with Ikuto.
 * Cosplay Otaku Girl: Chikage has an...interesting "source" for her different ideas of clothing when impressing Ikuto, it seems.
 * Covert Pervert: Mei Mei plays this trope as straight as possible, with her erotic book reading and what she thinks will happen anytime a girl is alone with Ikuto.
 * Covert Pervert: Mei Mei plays this trope as straight as possible, with her erotic book reading and what she thinks will happen anytime a girl is alone with Ikuto.

"Mikoto: Rin-neeesamaaaa♥... Rin: That's impossible between girls, you fool!"
 * CPR: Clean, Pretty, Reliable: Hilariously used in the very first chapter.
 * Create Your Own Villain: Machi was responsible for the release of her own nemesis, Genjumaro.
 * How Beniyasha came to be.
 * Cry Cute: everyone does.
 * Cultured Warrior: The North and South Leaders are fans of mystery novels.
 * Curse Cut Short: Ikuto when about to be eaten by a fish.
 * Cute Bruiser: Almost everyone in the series.
 * Cute Little Fang: Suzu, but rarely shown, even in "feline" mode.
 * Yukino has two.
 * A Day in the Limelight: The current Story Arc hasn't featured Ikuto at all, at least until the last part.
 * Death Glare: Suzu has a nice one reserved for when people start to hit on Ikuto.
 * Delinquent:, in his youth, after his Tomato Surprise.
 * Face of a Thug: He attempts to have this, but fails horribly on account of his being
 * Demoted to Extra: Obaba.
 * Determinator: Ikuto once he decides something he does not give up on it,even when his decision is not have a bath with three gorgeous women.
 * A more straight example is any of his battles with the guardians.
 * And in the first chapters when he was determined to leave the island, despite the whirlwinds, his fear of heights and the fact that no one had been able to leave before
 * Deus Exit Machina: Twice, the West Leader was conveniently out of the story just when things are getting hairy. First with Mei Mei and Tohno's introductions, leading into a crisis that involved the other three Leaders (granted, the West Leader's identity is a secret up to this point, but that's out of the subject), and the second time when a couple of troublemakers decided to usurp his position, leading Ikuto to protect the West in his place.
 * Devil in Plain Sight: Inverted with Chikage, Ikuto's the only one in the island who doesn't realize she's a Bitch in Sheep's Clothing.
 * Did I Just Say That Out Loud?: Ayane has not caught on that most people scheme in their head silently. She just blurts her plans out loud and hopes no one hears them. Being the Butt Monkey they usually do.
 * Dirty Old Man: Cute Ninja carpenter Mikoto; she likes to peek at girls in the bath, especially Rin, lift up their skirts, and grope them.
 * Also the East Leader.
 * And Hikaru Genji
 * Does This Remind You of Anything?: When Beniyasha targeted her, Mei Mei became...stimulated. The offending liquid was sprayed all over her face. Yeah.
 * Do-It-Yourself Theme Tune: Four out of five of the theme songs were played by Yui "Suzu" Horie.
 * Does Not Like Spicy Foods: Suzu.
 * Also Machi.
 * Double Entendre: Not infrequently but chapter 90 in the manga is this trope. From the title to the last scene. A large part of this chapter is Shinobu, Yukino, and Suzu talking about riding Ikuto; you know on his shoulders.
 * Dream Land: A chapter deals with Machi spying on peoples dreams and we get to see some of these.
 * Dude Looks Like a Lady: Nagamasa, Chizuru's husband in Karaage's flashback, from whom Machi takes after in appearance.
 * Dynamic Entry: Frequent, but most notable would be Shima-tora when he interrupted Tohno's and the East Leader's brawl, by knocking them both out (temporarily, but still awesome).
 * Eastern Zodiac: Yashiro's shikigamis.
 * Easy Amnesia: Chapter 125 reveals that Ikuto's mother developed this after she fell off a boat (perhaps it runs in the family) and swam towards shore "only to crash into a dolphin." She recovered upon hitting her head again, apparently a few months later.
 * Eat The Pig: One bonus chapter has mame daifuku that were accidentally made with alcohol, so Suzu gets drunk...and sees Tonkatsu, or anything round and soft for that matter, as a mame daifuku. Hilarity Ensues.
 * Ecchi
 * Empathy Pet: Tonkatsu, to an extent.
 * Epic Fail: How else would you describe Ikuto forfeiting a game of shogi to Suzu because he has only the King remaining and Suzu wasn't even paying attention?
 * Even Evil Has Standards: Even the normally-sadistic Machi said that it was "too cruel" for Suzu to Uh-huh, sure...
 * Even the Girls Want Her: Much to Rin's dismay.
 * Everything's Better with Penguins: Though the penguins on the island are rarely given the spotlight. We've got Pen-Pen from Yukino's family, Sumeragi the shaved ice sales-penguin, and Totega-san of the carpenters (yes, he's a penguin).
 * Pen-Pen did become an Ascended Extra of sorts during the current Story Arc.
 * Everyone Can See It: Takatora and Suzuran.
 * Evolving Credits: The anime OP makes slight changes to include Mei Mei and Shinobu after the episodes they were introduced.
 * Expressive Mask: Even under that mask, you can tell that Beniyasha went Oh Crap, on two occasions.
 * Expy: Rin looks an awful lot like Nagase Kaede...so it should be no surprise who voices her in the anime.
 * Also see Identical Stranger/Contrived Coincidence below.
 * Eyelid-Pull Taunt: Chikage during the Baleful Polymorph incident she caused.
 * Fan Service: With one exception, no female has any inhibitions about bathing with the male lead; Suzu in particular is upset throughout the series because Ikuto won't let her come in with him. And that's just the most common way to give Ikuto something to Nosebleed over.
 * Fastball Special: Used at least twice.
 * Fearful Symmetry: A doppelganger fight.
 * Fluffy Tamer: Yukino usually rides along on the back of an animal she befriended - most often Kuma-Kuma.
 * Machi and her great-grandmother Yashiro, who love their shikigamis as friends and are loved by them in turn.
 * Foreshadowing: When they were looking for the cucumber thief, Suzu is the one who grasps the pattern in the crime spree. Fast Forward 70 chapters later, guess who solves the pattern in the Beniyasha case?
 * Fragile Speedster: Shinobu.
 * Ikuto states that she may be even faster than the West Leader.
 * Though, she’s not that skilled.
 * Ikuto’s training her to become a Lightning Bruiser.
 * Freaky Friday Flip: Ayane and Suzu.
 * Fridge Horror: returning as a ghost. Whether she's dead or not (the latter is still possible thanks to the island not being a stranger to the supernatural) it still begs the question: what really happened to her that no one even found out about it?
 * Fridge Logic: Apparently, it took Beniyasha less than a day to write and publish an adventure based on the latest antics.
 * Perhaps had the book written, then went out and had the antics.
 * Friendship Moment: The "rainy day" episode,
 * Gender Rarity Value: All the island's girls fight over Ikuto, the only male around.
 * Generation Xerox: Stories about the girls' parents are nearly the same as the stories about the girls themselves. Just with a few more guys to choose from. This is played hilariously straight with Machi, who is a shorter version of her father and a black-haired version of her great-grandmother.
 * According to Chapter 134, Ikuto is very like his father in "leaving home at a young age and finding a woman soon after." Ikuto's mom says she was 16 at the time.
 * Genie in a Bottle: A particularly cute one debuts in one of the omakes.
 * Literal Genie
 * Genius Ditz: For some reason, Suzu can easily wipe the floor with everyone on the island - all at once.
 * Gentle Giant: Beefsteak's older brother, who is very large, buff, scarred, knows how to cook a good meal... Oh, and his reputation as a bruiser was only a rumor.
 * Also, Panako, unless you get her mad.
 * Ghost Lights
 * Giant Food: Did you see the size of those eggplants?
 * Glowing Eyes of Doom
 * Good Scars, Evil Scars: Taiga got it from The West Leader,.
 * Gotta Catch Them All: In the Scavenger Hunt, Ikuto has to collect the seals of the Four Leaders by defeating them.
 * G-Rated Sex: Hoo, boy. Aside from innuendo, the author has created probably the closest things one can get to child-friendly tentacle rape and bestiality.
 * Groin Attack: Ikuto gets this because he doesn't believe Tohno is a kappa.
 * Hair-Trigger Temper: Machi.
 * Half-Human Hybrid: Michiru.
 * Harem Hero: Ikuto started as Type 2A then he became a Type 2B.
 * Hadaka Apron
 * Handsome Lech: Tadanori, Rin's Disappeared Dad. Ironically Cannot Spit It Out in regards to his true interest, Risa.
 * Henohenomoheji: An eggplant with a henohenomoheji face is often used as a dummy to draw girls away from Ikuto.
 * Heroism Incentive: To get the girls to care about the test results they offer a date with Ikuto as the incentive.
 * Hey, You: Michiru is called this by almost everyone on the island, because they don't remember who she is.
 * Hilarious in Hindsight: in regards to the Retcon.
 * Hey, That's My Line!
 * Hidden Badass:, at least to Ikuto.
 * Hidden Eyes: Noticeable whenever anyone is going to, is, or did anything to Suzu/ 's love intrest.
 * Hot Mom: Guess how old the mothers are?
 * Identical Stranger/Contrived Coincidence: Ikuto just happens to resemble Right...
 * Also, a Youkai having the exact same appearance as Ayane. Think about that for a while.
 * According to Ikuto, Michiru is an In-Universe Expy of.
 * What's more bizarre, Misaki mentions two cousins of Ikuto he'd never referred to: they look like Ayane and Machi ... and they're named Ayane and Machi—but the Ayane in Japan is the elder sister. Physical resemblance is weird enough; matching names is something else again.
 * Idiot Hair: Yukino, Lampshaded even.
 * Idiot Hero: Ikuto, as Karaage and Beniyasha both like to tell him. Even though it really only applies when he is dealing with women.
 * Idiots Cannot Catch Colds: Ikuto alludes to this trope when Suzu was the only one to not catch Machi's cold.
 * I Let You Win: The West Leader accused the North Leader of this, in regards to the latter's first duel against Ikuto.
 * Imagine Spot: Ikuto has a few.
 * I'm Taking Her Home with Me: Misaki likes cute animals. This is her reaction to especially cute small animals. In Chapter 138, it turns out the.
 * Indirect Kiss: Machi kissed Shinobu to kiss Ikuto (after she found out Shinobu had given him a mouth-to-mouth medicine dose).
 * Intelligible Unintelligible: The animals start this way to Ikuto until he 'gets used to life on the island.' Then they can be heard and understood in Japanese.
 * Inevitable Waterfall: Lampshaded by Ikuto, who seems resigned to go over it (and he does).
 * It's subverted later, too. When Ikuto finds himself in the same river, headed for the same waterfall, he remembers that it forks farther down. So he gets out...and then he gets eaten by a fish.
 * Informed Attractiveness: Subverted; Ikuto was frequently told that Panako (Chikage's elephant maid) is the most beautiful person on the island, which he refuses to believe.
 * Innocent Cohabitation: Ikuto and Suzu. There are no Those Two Guys to lampshade this, of course, but then again, the rest of the Unwanted Harem is jealous.
 * Innocent Fanservice Girl: An entire island full of them. Since most of the main cast grew up without any contact with males they never had to develop a since a modesty. As the story goes on some of the girls begin to realize the affect they have on Ikuto and avert this trope. Mind you they still do the same things they just realize what it entails.
 * Averted with Rin who doesn't like to bathe or reveal herself even with other females.
 * Innocent Innuendo: In Chapter 90, Suzu and Shinobu have a discussion about how much fun it would be to ride Ikuto. Sitting on his shoulders like Yukino, of course.
 * Interspecies Friendship: See Fluffy Tamer above.
 * Interspecies Romance: For their mother's birthday, Shinobu, Mikoto and Kunai decide to give her a grandchild as a present. Which is the person they each chose to "do it" with them? Ikuto, Rin, and Totega, respectively. And that wasn't the even only hint of Kunai's attraction to Totega...
 * Homosexual Reproduction: um, yeah. At least if Mikoto could get what she wants...
 * Homosexual Reproduction: um, yeah. At least if Mikoto could get what she wants...

"Michiru: Come on, calling me by a pet name; you still can't remember my real name?!"
 * It Amused Me: Machi's reason for doing everything she's doing.
 * She even lampshades it herself at one point.
 * I Want Grandkids: Guess.
 * I Was Quite a Looker: Obaba.
 * Jack Of All Trades, Master of None: Ayane.
 * Jaw Drop: An epic one in chapter 5.
 * Journey to the Center of the Mind: Machi finds/creats a spell that allows her to go into another person's dream.
 * Kid With the Remote Control: Yukino.
 * Killer Rabbit: The South Leader, Shima-tora (cat) and the West Leader,, the latter of which was reputed to be the strongest of the Four Leaders.
 * The East Leader could possibly count, too. After all, he is a cute (albeit large) fuzzy panda.
 * Lady Land: The island, obviously.
 * Lap Pillow: Ikuto is the pillow for Machi while she is sick, and Suzu because she asked him which causes a three way brawl for his lap...
 * Last-Episode New Character: Michiru, daughter of an islander and a Yuki-onna and Obaba's medical apprentice. First appears during the end credits of the last episode.
 * The manga has since retconned her into the very beginning of the story: she is now seen helping treat Ikuto when he first shows up on the island. Her late appearance is explained away as a consequence of being the daughter of a snow woman, a spirit associated with winter. She is immune to cold but sensitive to heat, and thus rarely went outdoors to avoid the sun.
 * Last of Her Kind: This is what Tohno believes when she thinks there's no more Kappa on the island. She's wrong ... and Chizuru, of all people, knows exactly where all the other Kappa are. Ayane and Tohno never think to ask why her hilariously horrific artwork (which actually looks like outside-world portrayals) always seems to be of Kappa.
 * Leaning on the Fourth Wall: Done time to time, but chapter 65 takes the cake.
 * And then there is that tendency of the characters to measure time by the issue number, only to be corrected by another character.
 * Oba-sama is getting tired of Ikuto not making progress with any girl on the island, even though 50 issues 3 months have passed already.
 * The flashback chapters starring Suzuran and Karaage are chock-full of this. Notably, when narrating a certain event in the flashback, present-day-Karaage compares Suzuran to a demon, only for Suzuran to go berserk and point at his dialogue box while beating past-Karaage up.
 * Similarly, when Misaki is talking about the "spirit-jutsu specialist" who works for their grandfather, she tells Ikuto, "You've met him many times ... look, it's Seihouin-san" and she's pointing at an image of "Seihouin-san" (actually Nagamasa) ... that's hovering right over his lookalike daughter Machi, who apparently can't see it.
 * In Chapter 138, Misaki is chewing Ayane out for using Fanservice as a way of trying to win Ikuto ... and then she adds, "Also, if you continue, this manga will become R-18!" Likewise, an earlier chapter had Tohno think Mei Mei was stripping in front of Ikuto, and Tohno worried that the manga would get "an 18+ rating."
 * Several characters are working as teams to solve another Beniyasha mystery, and narrative boxes give them such names as "Attractive Older Woman Team." They're aware of the narrative boxes ("Who are you calling an older woman?" Rin's mother demands) and one member of the "Supporting Role Team" makes a suggestion starting with, "Since we're done for as minor characters anyway..."
 * Lethal Chef: Double subverted with Machi. After she takes lessons in cooking, it still looks like the stuff is literally CURSED...but actually tastes quite good. The catch? She makes A LOT of food, and won't let you leave until you eat it ALL of it.
 * Anime only.
 * In the Manga, she leaves behind a truly frightening mess of what used to be the kitchen that some unlucky soul has to clean up.
 * Lightning Bruiser: Some of the cast are this.
 * Limited Wardrobe: One early chapter has Suzu wondering what to wear...and the manga goes out of its way to point out that she was choosing between two identical clothes.
 * Loads and Loads of Characters: You've got Ikuto, the main haremettes (about 6-7), side female characters, including most of the girl's mothers (another 20-30), and all the talking animals...yeah, let's just say there are a lot of names to remember.
 * Locked in a Room: An interesting variation where its more tied together suspended from a bridge. Ikuto uses this time to find out why Ayane has been avoiding him.
 * Lost World: The titular island.
 * Love Hurts: See Tough Love below.
 * Mad Scientist: Chikage
 * During one certain storyline, she becomes a
 * Made of Iron: Ayane and Shinobu are noted in story to be exceptionally tough.
 * It seems like Ikuto learned this by being on the island. In the beginning he would actually have to rest a day after being beaten to a pulp. Now he can He has come a VERY long way.
 * He may have always been this. He drifted at sea for 7 days without any food or water with no visible discomfort. He may have just been recovering from that still in the get go, which explains how weak he was in the beginning.
 * Magic Skirt: Used in the anime, but noticeably absent in the manga.
 * Master Apprentice Chain: Suzuran --> Karaage --> Ikuto --> Shinobu
 * Meganekko: Subverted by Chikage, whose expected personality quickly gives way to Mad Scientist.
 * Played straight with her Hot Mom Shizuka
 * Mentor Ship: see above.
 * Metaphorgotten: Lampshaded: In Chapter 78, Suzuran makes up her own proverb ("If you disturb other people's relationships, a horse will kick you!"), and a couple of horses turn up to ask her why they were the ones in the proverb. May also count as a Brick Joke or Call Back, because Kokoro referred to this proverb in Chapter 43. "I don't want to be kicked by a horse and drop dead."
 * Mighty Glacier: Pandaro, the East Leader.
 * Miko: Ayane, Machi, Chizuru, Yashiro.
 * Miniature Senior Citizens: The Grandma.
 * Missing Mom: Ikuto's mom is still not mentioned in the series until Chapter 125.
 * Moment Killer: Many times. The one that stands out would be when Sakuya swears that Ikuto and would never get disturbed, only for Sakuya to spoil the biggest one herself.
 * Mood Whiplash: Beniyasha makes his dramatic exit, ominously announcing his plans to an aspiring detective that plans to capture him...
 * Karaage attempts to, only for Takatora to tap into Karaage's "playful side".
 * My Beloved Smother: Suzu's protective of Tonkatsu, and one chapter is dedicated to showing it.
 * My Name Is Not...: m...suke.


 * Never Got to Say Goodbye: Ikuto to his family when he ran away from home.
 * Nice Job Breaking It, Hero: Everyone widely (and correctly) assumes that
 * Nightmare Fetishist: Machi. Oh GOD, Machi.
 * No Periods, Period: Justified according to Ayane in regards to Suzu she hasn't started menstruating yet.
 * No Sense of Direction: Shinobu could give Ryoga and Zoro a run for their money, if they could find it, that is.
 * No Social Skills: Since men have long since vanished from the island, most of the current generation of girls have lost much of modern society's norms on ethical behavor towards men in public, hence their constant bombardment of Fetish Fuel towards Ikuto (see above) and they think there's nothing wrong with that.
 * Subverted with Rin, who actually tries to seduce him at one point by deliberately taking his hand and putting it on her breast knowing the implications (and she squirms and moans from the sensation too). Also, she's the only female who screams in embarrassment and scolds Ikuto for stumbling on to her while she's bathing naked.
 * Noodle Incident: No one wants to elaborate why Sakuya wrecked her own inn that one time.
 * Nosebleed: Ikuto, constantly and massively.
 * Nagasarete Airantou may very well be the king of this trope.
 * Not So Weak: Pandaro, The East Leader.
 * He may be the Butt Monkey among of the Four Leaders but is the Leader to the most dangerous place on the island.
 * And, he has a chimera as an Unknown Rival that could hardly dent him.
 * Obfuscating Stupidity: You'd never guess (at first) that is one of the island's most powerful residents...
 * Oblivious to Love: There are a few in the cast, but gets a special mention.
 * Wow, shows us how this is done, and the manga is still ongoing.
 * Wow, shows us how this is done, and the manga is still ongoing.

"Karaage: Right now, the both of you really look like a married couple arguing over what to do with their son's education."
 * Official Couple
 * Off-Model: Episode 25.
 * Oh Crap: Whenever Machi gets angry, expect anyone to have this expression.
 * Older Than They Look: Machi is 18.
 * Just don't say she's old.
 * One-Scene Wonder: One picture shows Kokoro and Hanzou getting married...upside down, kneeling on the ceiling.
 * Opening Shout-Out: The end of the anime is a bird's eye view of Ikuto being chased around the island, exactly like the chase shown in the OP.
 * Our Ghosts Are Different: Oh, yeah.
 * They can be touched, normally speak only in "Bake"s (Japanese word for ghost), can fly, and can possess people, for that extra bit of Paranoia Fuel.
 * None of them are really evil, though.
 * Overly Long Gag: Ikuto challenging the whirlpools in the first episode/chapter. Over and over and over...
 * Overly Long Name: Weather Charm 1-2-3-Shikis' Muramasa.
 * Even lampshaded.
 * Overnight Age-Up: Chapter 81-82 for Yukino.
 * Overtook the Manga: The anime covers a small chunk of the manga.
 * Panty Shot: Much to the threat of Ikuto's health, everywhere. Of the main cast, the only people who don't get frequent Panty Shots might be Machi and Ayane as they wear traditional hakama.
 * Parental Substitute: After Suzuran's disappearance, Karaage said that he took it upon himself and his family to look after Suzu.
 * Petite Pride: Ayane, much to her displeasure.
 * Pet the Dog: According to the most recent chapter, Taiga has mellowed down somewhat, dropping by Mei Mei's every once in a while to give her a gift. Tohno, being The Tease that she is towards Mei Mei, hilariously guesses that there might be another reason why.
 * Pint-Sized Powerhouse: Machi.
 * The West and South Leaders qualify as well.
 * The Pirates Who Don't Do Anything: The Shiritori Group lasted only a week before Suzuran broke them up. Even during that week, all they do is Poke the Poodle.
 * See What Do You Mean It's Not Heinous? below.
 * Playboy Bunny: Suzu and Ayane. Naturally, Chikage helped them.
 * Please Put Some Clothes On: Suzu mostly because he lives with her, but he says it to just about every girl in his Unwanted Harem at one point or another.
 * Polyamory: About the only way humanity is gonna survive on the island. Even then there is gonna have to be some sort of first cousin marrying going on.
 * Grandma says that it's cool, but difficult.
 * Potty Failure: Implied to happen to Ayane at the end of chapter 72. Ayane also accuses Suzu of having been a bedwetter until just a year or so ago.
 * Apparently for Suzu it's In the Blood; Suzuran used to wet her bed until pretty late on, according to Karaage.
 * Happened to Yukino in chapter 47 when she was frightened. Throughout the chapter, other characters would say things like, "And here's where Yuki-Yuki was standing when she wet herself," and she'd growl in outrage.
 * The Power of Friendship: is used to transform as.
 * Precision F-Strike: Ikuto when punching a ghost white bear that had just terrified Ayane and Suzu into defeat.
 * Psycho Lesbian: Mikoto.
 * She acts more like a Dirty Old Man though.
 * Rape Is Ok When It Is Female On Male: Not actually rape, but when when, HE "mans up" and takes responsibility for "offending" her. And he actually seems to think that it was his fault...
 * It's more of an though.
 * Ready for Lovemaking: Ikuto has had at least Shinobu show up in his bed naked asking him to make a baby with her. Not that she knows what sex is but whatever...
 * Red Herring: Chikage in the first Beniyasha Story Arc.
 * Remember the New Guy?: Michiru. Lampshaded repeatedly.
 * Remembered I Could Fly: In chapter 112, after babysitting a young bird who could fly, Ikuto notes to Kamokamo since he was a duck, he should be able to fly. Kamokamo replies he forgot.
 * Rescue Romance: is the point when Suzuran acknowledges her deeply-hidden feelings for Takatora.
 * Retired Badass: Subverted; even though, the West Leader is still the protector of his area, and still enforces the law. Although, Taka-Taka did point out that he doesn't take things more seriously anymore.
 * Sumeragi the shaved-ice penguin. Ikuto shouldn't have challenged him even though he was already informed beforehand
 * Ridiculously-Human Robots: Wait, Sakuya can blush?!
 * The Runaway: Ikuto's a Type 2.
 * Running Gag: There are many, but one issue alone saw two running gags involving Taka-Taka's nephew Piyomaru: the chick's obsession with biting anything that sparks its interest, and people mistaking that he's Taka-Taka's illegitimate child.
 * Say It with Hearts: Happens frequently, but chapter 8 contains a rather ...humorous example.
 * Samus Is a Girl:
 * Tohno as well, since everyone (except possibly Mei Mei) actually mistook her for a man until the mass-Baleful Polymorph episode.
 * Sarashi: Suzu, as seen on the trope page. And most some of the island girls, it seems.
 * Scarf of Asskicking: Shima-tora.
 * Scary Shiny Glasses
 * Scenery Censor: Chapter 73 contains the best example ever.
 * Secret Keeper:, on Beniyasha's identity.
 * Secret Test of Character: It turns out that
 * The Seven Mysteries: Airantou has Seven Wonders. Almost all of them seemed to be caused by the aliens though.
 * Shipper on Deck: Apparently, Shinobu doesn't find it strange that her sister Kunai's attracted to Togeta.
 * It might count as just being teased, but still...Karaage, you trying to imply something? The smirk on your face seems to support the idea anyhow.
 * Shipper on Deck: Apparently, Shinobu doesn't find it strange that her sister Kunai's attracted to Togeta.
 * It might count as just being teased, but still...Karaage, you trying to imply something? The smirk on your face seems to support the idea anyhow.

"Ikuto: Just what kind of a monster is he? Who's the monster?"
 * Following in Karaage's own opinion above, Tonkatsu itself believes that Ikuto and Suzu are its parents.
 * Karaage also ships Takatora/Suzuran, in a weird way.
 * Tohno ships Ikuto/Mei Mei.
 * And oddly enough,  ships Ikuto/Ayane.
 * ships her with Ikuto. Ikuto's mother ships with Ikuto.
 * Shorttank
 * Shout-Out: That speech Suzuran gave Karaage seems very familiar...
 * That, and Karaage's tendency to point his finger feather to the sky...yeah.
 * Machi keeps a painting of a Stringy-Haired Ghost Girl stepping out of a well.
 * Ikuto's bag contains several mangas, including Full Metal Alchemist.
 * Shrinking Violet: Mei Mei. She gets better, most of the time...
 * Shrouded in Myth: Ikuto's "theory" on the West Leader's identity.

"Ayane: Eh? The sunfish saw a tuna being chased by sharks while a human was riding on top of those very sharks? Shinobu: As expected of Shishou. He, as always, gets involved in complicated situations that go beyond our imagination - degozaruna."
 * Ikuto himself became this when the Leaders narrate their experiences with him to Shinobu before the latter ever met him.
 * Shy Finger-Twiddling: Done by
 * Sibling Rivalry: Ayane and Machi.
 * Sibling Yin-Yang: Ayane and Machi.
 * "Silly Me" Gesture: Yukino does this even though she lives on an island cut off from the outside world which makes it confusing where she picked it up from.
 * Slapstick Knows No Gender: Everyone: males, females, youkai, half-youkai, animals, ghosts, etc takes a turn at being the brunt of slap stick humor. Ayane probably takes the most turns though.
 * Sneezing: On one infamous occasion, it was combined with a Nosebleed.
 * Something They Would Never Say/Not Himself: Suzu figures out that Ikuto
 * Sorting Algorithm of Evil: The order that Ikuto fights the Leaders in the Scavenger Hunt: East (widely considered the weakest), South (however, his battle relied more on trickery than brute strength and power, so his position in the order only depended on the difficulty of his challenge), North, and finally, the West (whoever's superior between these two was sometimes contradictory; while the latter is often called the strongest fighter on the island, he himself admitted that the North was in "a class all his own").
 * Sound Effect Bleep: Mei-Mei when she forgets the covert part of Covert Pervert.
 * Status Quo Is God: Except for a few very far apart things, like the arrival of Mei Mei, and Ikuto's accustomisation to the weirdness of the island, the chapters could be read in almost any order and still make sense.
 * And then later, there's
 * Actually there is a running time line. Almost all chapters go right from the end of the previous chapter. You could chalk up whatever they are talking about until the new plot picks up as a Noodle Incident, but well that would hurt the story.
 * Stay in the Kitchen: Played around with. Ikuto is probably the weakest person on the island. He eventually starts to continue his kendo training from before his arrival on the island to overcome this fact.
 * Played straight with Ikuto's family motto being Protect Woman. Which is why he always is the one to fight, and the one to chase after any girl in trouble. The women of the island act with confusion to the idea, but respect his determination. It works for him in spite of many people being stronger than him because the worst person we have seen so far is a lecherous panda.
 * Michiru wishes for this.
 * Stealth Hi Bye: A number of characters pull this off in the manga, but the master has got to be Machi.
 * On one memorable occasion she shows off by appearing between Yukino and the animal that Yukino is currently riding on.
 * Stealth Mentor: The West Leader for Ikuto, who doesn't know who the West Leader is, before The Reveal The Untwist. Later becomes a Trickster Mentor of sorts.
 * Locked Out of the Loop: The West Leader insisted to the islanders that his identity be kept a secret from Ikuto just because he thinks it'll be more fun that way.
 * Stealth Pun: One chapter has Tonkatsu "squealing" to Chikage about Suzu going truant.
 * Stepford Smiler: According to Karaage, Suzu's default expression before Ikuto arrived on the island.
 * Stone Wall: Ikuto's fighting strategy is the Turtling variety using his superior swordsmanship to block and redirect blows, also he can take a few hits himself, as noted by Karaage.
 * Survival Mantra: Played for laughs.
 * Suspiciously Specific Denial: Chapter 72. Why would she say that instead of asking for help?
 * Tactical Rock-Paper-Scissors: Genjuumaru beats Machi who beats Ayane who defeats Genjuumaru.
 * Talking Animal: Most of them.
 * Funny Animal: Well, compared to how Real Life animals look like anyway.
 * Tempting Fate: After the many times Ayane tried to one-up her sister, you'd think she'd ever learn? Noooo...
 * Tenchi Solution: Machi once said she considered an affair with another woman to show a man's worth, so she wouldn't mind. Not that he's actually with her though.
 * advocates this.
 * Thanks for the Mammary: Ikuto.
 * This Is Reality: Said in the manga by Tohno to Mei-Mei and Ikuto to Shinobu: "This isn't a manga, you know." (Does this count as Hypocritical Humor, since Tohno at least has other times acknowledged it is a manga?)
 * Through His Stomach: Most of them do this.
 * Tomato Surprise: Played for laughs with
 * Tomboy and Girly Girl: Tohno and Mei-Mei, apparently.
 * Took a Level in Badass: After some training, Ikuto can now go toe to toe against the Leaders. Oh, and the Panda, too. Sure, when he last fought them the battles were non-"traditional", but still...
 * Too Dumb to Live: For their mother's birthday, Shinobu, Mikoto and Kunai decide to give her a grandchild as a present. Who did each choose to "do it" with her? Ikuto, Rin, and Togeta, respectively. At least Shinobu's choice was biologically possible, but there was no way she could pop out a kid by the next day, let alone the fact that she does not know what sex is, or at least that that's how one makes a baby.
 * Apparently it is rather common to not know what sex is in this Harem. Ayane paralyzed him and was going to try and get pregnant with his child so that he could not leave the island. She never expected to get this far in her plans anyway.
 * This may be justified because there were no men on the island up till now so teaching your girls about the birds and bees may have seemed a waste of time. You would think that they would have got a crash course though once Ikuto showed up.
 * Tough Love: Machi really does care for her little sister Ayane. She just has a...weird way of showing it. She even said so herself. While there's good reason to doubt this statement, Machi actually provides a visual example Fridge Brilliance, folks.
 * Trademark Favorite Food: Curry for Ikuto.
 * Mame daifuku for Suzu.
 * Spicy foods for Ayane.
 * Justified, since Machi does not like spicy foods, so these are the only things left for Ayane to eat freely.
 * Cold foods for Michiru.
 * Justified, since she's half-Yuki-onna.
 * Training from Hell: Apparently Ikuto had this in the past from his grandfather.
 * Mei-Mei, Suzu, and Shinobu decide that Ikuto needs this to overcome his fear of bathing with people. Although it's more like training from marshmallow hell. Actually it did just about kill him.
 * Karaage went through this to learn how to fly. Although being a chicken that goal is impossible, but it did turn him into an amazing fighter.
 * Tsundere: Most notably She is never honest with herself, especially with regards to her crush
 * Apparently since Suzu is growing into something like one herself...
 * The Un-Reveal: Before the West Leader's identity was actually unveiled, it's a Running Gag for Ikuto to ask about him only for something to happen before he gets his answer. While the readers are clued in on the Leader's identity, but the Running Gag for Ikuto stays until the climax of the Scavenger Hunt.
 * Unwanted Harem: The women are determined to have the Ikuto, the only male, to themselves, to an often violent degree.
 * Cursed with Awesome/Blessed with Suck: Ikuto, like the center of some harems, constantly refers to it as both "heaven" and "hell".
 * Up to Eleven: Ikuto, fishing, hooked a big tuna which dragged him out to sea because he refused to let go. Ayane, Shinobu, and Misaki began asking around among sea creatures to try and find him:
 * Up to Eleven: Ikuto, fishing, hooked a big tuna which dragged him out to sea because he refused to let go. Ayane, Shinobu, and Misaki began asking around among sea creatures to try and find him:

"Kagami: Karaage-chan, who is the same age as you, already had his own family. But you- Taka-Taka: Shut up! Living a single life is my principle!"
 * Verbal Tic: Shinobu's sentences always end in "-degozaru".
 * Typical for the anthropomorphic talking cats (and Suzu), they are prone to make "~nya" sounds when they speak.
 * Victoria's Secret Compartment: Suzu. Episode 22. That is all.
 * Voluntary Shapeshifting: Shima-tora's wife, Myaa, who can change her appearance between a cat and Catgirl. She spends most of her time in catgirl form, because she tends to eat too much and her cat form is a tad overweight. Shima-tora can do it, too, but it's best that no one sees how he does it, as Suzu and Tonkatsu found out the hard way.
 * Wacky Marriage Proposal: Takatora to Suzuran. Wacky as in not how he proposed, but how she reacted.
 * Weak but Skilled: Ikuto is one of the physically weakest people on the island, at least at first. More arguably now, but that doesn't stop him from fighting at all.
 * What Do You Mean It's Not Heinous?: Kaarage reflects on his "delinquent past" in chapter 76, only for Ituko to tell him that in the outside world, it's normal for birds to go around and eat people's crops.
 * Why Did It Have To Be Heights, Ghosts, Age, Kappas, Worms, Ane-san...
 * Wild Mass Guessing: See the page. There's more there than you might think from a story with such a simple premise.
 * Worthy Opponent: The Leaders to each other, as the flashback Story Arc shows. Although, the North sometimes holds contempt for the East, while seeing some potential in Ikuto himself.
 * Wrestler in All of Us: Obaba. No, really.
 * Never Mess with Granny
 * Yamato Nadeshiko: Played with. Suzu tells Ikuto that her mother is this, but Karaage, who knows better, says that it is all a facade because Suzuran hopes that Suzu would not take after her.
 * Yandere: Suzu arguably fits this trope the best and has yet to even realize why she fits it so well.
 * You Need to Get Laid: This memorable exchange:


 * Shimatora remarks that Taiga's wife left him for being too stern, and Shimatora's wife adds with a smirk, "It's been about half a year now, hasn't it?"
 * Younger Than They Look: In the case of Suzu, even Lampshaded.
 * Your Cheating Heart: The East Leader tries to take Mei Mei in as his bride, so the South Leader decided to snitch to his wife. The results were not pretty ... for the East Leader, that is.
 * Zettai Ryouiki: Chikage's outfits follow this trope frequently. Really it shows up a lot.