Yosuga no Sora

Following the death of their parents in a tragic car accident, Haruka Kasugano and his twin sister Sora are left orphaned. Rather than live with relatives, Haruka seeks comfort in fond memories of the past and decides to move to the country house left to the siblings by their grandparents, who are also deceased. Sora, unwilling to be separated from her brother, decides to follow him. Although Haruka's glad to relive the memories of the summer vacations he spent at his grandparents' home, Sora's much less enthusiastic.

Haruka reconnects his childhood friends Nao Yorihime, the neighbourhood older sister, and Akira Amatsume, the shrine maiden. He also becomes friends with his new classmates Kazuha Migiwa, the daughter of a local politician, and Ryouhei Nakazato, who is in Haruka's class because he ended up getting held back a year. Haruka also meets Motoka Nogisaka, a maid in the employ of Kazuha's father.

Originally designed as an H-game, Yosuga no Sora averts the standard Unwanted Harem by having a player express interest in a heroine early on in the game. The story then branches off and shows Haruka's developing relationship with the chosen girl. Each route's a story of drama, summer love and coming of age as Haruka adapts to his new responsibilities as Sora's de facto caretaker and learns how to provide the heroine with emotional support.

Currently has a manga and a 2010 twelve episode Animated Adaptation using a similar episodic format akin to Amagami SS: each heroine has an "arc" dedicated to her, but rather than an Alternate Continuity to reset an entirely new "arc", the next set of episodes features a What If for Haruka in vying for another heroine's heart.

A Sequel/expansion fan disk called Haruka na Sora contains bonus material, extended scenes and includes scenarios for Kozue Kuranaga and Yahiro Ifukube.

This series provides examples of:

 * A Date With Jamie Fingers - Motoka...one too many times, to the point some viewers conveniently call her "the schlicking maid"
 * Then there's.
 * A Man Is Not a Virgin - Naturally, being an eroge and all; not even the Anime of the Game is immune to this (see Bleached Underpants below). However,  specifically dislikes   for this reason (see )
 * Ascended Extra - In the eroge, Kozue has the dubious honour of being even sadder than Sacchin. Fortunately, the fan disc took the rare step of making her the protagonist of her own route
 * Beach Episode - Episode 3
 * Beyond the Impossible -
 * Big Damn Heroes - Nao, when she . Not bad, considering that Sora
 * Bishie Sparkle - How Kozue sees Haruka
 * Bittersweet Ending:
 * Black Comedy Rape: Matoka does this to Haruka in episode 7's omake while drunk. Not that Haruka minds it...
 * Bleached Underpants - The manga so far, but averted Up to Eleven for the anime. While not extremely explicit, one character masturbates (it's implied this is on a frequent basis) and the show has no qualms showing nipples in full detail. Then episode 4 literally drops the audience with a sex scene...sort of...
 * Broken Bird - Yes, Sora could probably use a slap or two for her selfish, needy behavior. On the other hand, she's such a psychological mess that it's hard not to feel sorry for her.
 * Bromantic Foil - Ryouhei, who often teases Haruka that he (Ryouhei) wants to be Sora's escort. Doubles as the Unlucky Everydude
 * Choose Your Own Adventure - Unlike Amagami SS, episode 1 establishes all the characters; following that, episodes branch out on particular heroines:
 * Kazuha: Episodes 2-4
 * Akira: Episodes 2, 5-6
 * Nao: Episodes 7-9
 * Sora: Episodes 7, 10-12
 * Motoka: The Omakes at the end of every episode (though much of it is told from her perspective)
 * Class Representative - Kozue
 * Clingy Jealous Girl - Sora, full stop
 * Caught the Heart On His Sleeve - Sora to Haru
 * Conspicuous CG - Most car scenes are the blatant ones (the train scene, too) but ESPECIALLY THE FANS, where it seems the animators spent a lot of time in the initial scene showing you the fan on the train. You could say that this show has its own fandom. Heck, even a Photocopy machine...
 * Cool Big Sis - Nao, Yahiro
 * Continuity Nod - The Omake ED includes Yahiro and Kozue as part of Haruka's harem, even though their actual arcs were only included in the game's fandisc
 * Date Rape:
 * Erotic Dream - Late in Sora's arc, Haru dozes off in class and dreams that.
 * Expy: Akira and Kazuha are a little reminiscent of another Genki Girl and Ojou team.
 * Fan Service
 * Festival Episode - The summer festival is a common event in the game and anime
 * Follow the Leader - Semi-averted: while it seems like it follows the story-telling plot from Amagami SS, where after one arc is over and they Retcon the entire thing with the next heroine, Yosuga no Sora splits from the end of episode 2, rather than episode 1, for Kazuha and Akira. Nao and Sora's arcs split from the end of episode 7
 * Foot Focus - The anime absolutely loves showing bare feet and legs. Especially Sora's.
 * Foreshadowing - The Motoka Omake scenarios show bits and pieces of the main heroines' plots. To note:
 * When Sora comes out underneath Haruka's desk and the next scene has her and a few other girls eating a lollipop.
 * When Sora and Nao get into a brawl with the shed on fire due to lightning,
 * For a split second, the twins were drowning in a lake all Super Deformed.
 * Which leads to Wild Mass Guessing as to who rescued the both of them (although, it's implied to be Nao because of the ending sequence).
 * Gainaxing - Quite a bit in the anime, especially the second ED, which has Nao/Motoka/Yahiro all bouncing their goods in unison
 * Gender Blender Name - The fact that Haruka and Sora are both unisex names with feminine bases just makes the whole thing weirder
 * Genius Ditz -
 * Genki Girl - Akira
 * Slightly inverted in that at one point, she
 * Girlish Pigtails - Sora, at least half the time, and Kozue
 * Hair Antennae: Haruka, Sora, Akira and Yahiro.
 * Half Identical Twins - The Kasugano twins, with the only real differences between them are height and gender
 * Head Pet - [[http://fabien.li/tvtropes/Yosuga
 * Hey Its That Voice - Apparently, Haruka and Sora were lovers in another life...with bicycle included
 * Haruka is no stranger to capturing girls.
 * Hilarious Outtakes - The entirety of the Motoka omakes, although some scenes serve as Foreshadowing for key events in the main girls' routes.
 * Hot Mom - Yahiro can be considered this: she looks after Akira after the death of her foster father
 * Hotter and Sexier - In comparison to the rest of the post-midnight anime market, anyways. Whereas most networks still shy themselves from showing uncensored nipples after midnight, Yosuga no Sora dares to go the whole nine yards and show full sex-scenes on network TV, akin to HBO's Rome and The Sopranos
 * Idiosyncratic Episode Naming - Every episode works in the name of a character or two while keeping the title an actual sentence. A prime example is episode 4: while translated as "Haruka's Heart", in katakana it's spelled "Harukazuhaato", containing both "Haruka" and "Kazuha" (the episode's two main players) in the title
 * Idiot Ball -
 * Ill Girl - Sora, but it never really comes up, except in the manga
 * One early scene in the anime has Sora spend time at the hospital when she was younger. Haruka also briefly mentions this during Sora's arc.
 * Immodest Orgasm - Motoka, which is unfortunate given that she lives with her parents
 * Innocent Fanservice Girl - Akira.
 * Sora is this to an extent, especially in her own arc (though she isn't all that innocent by that point). And her room is definitely fan serviced.
 * I Want My Beloved to Be Happy - there are elements of this in Nao's acceptance of the Sora arc.
 * Les Yay:
 * Little Sister Heroine - Sora. Possessive and prone to thinking of him during 'special' times, she actually is related to him by blood.
 * Luminescent Blush - The default expression of the girls when they're near Haruka. Especially Kozue
 * Mad Libs Catchphrase - Arguably, Sora's "-taku nai" ("I don't want to _"), though this rapidly disappears in her arc
 * Meganekko - Nao
 * Meido - Motoka
 * Miko - Akira, with Shrines and Temples to go along with it
 * Mood Whiplash - The omakes at the end of each episode is... out of place with the episode preceding it
 * Gets even more ridiculous when the chibi-like figures shape-shift, such as Motoka's snakish figure in episode 3. Or Akira's head being GINORMOUS. Coincidentally, these are also seen in the second ED.
 * My God What Have I Done: Nao
 * Near Rape Experience:
 * - Subverted:
 * Non Standard Character Design - Akira in the Omake has a very large bobble-like head
 * Norse By Norsewest - At least in the manga, it's implied that ended up moving away to somewhere in Scandinavia where they could finally live together in peace.
 * Not What It Looks Like - Used and abused frequently
 * Oddly Visible Eyebrows
 * Ojou - Kazuha, who naturally comes with a Hime Cut
 * Omake - A brief sequence at the end of each episode with Motoka as the protagonist
 * Otaku Surrogate - Sora
 * Parental Abandonment - Akira was abandoned by her father much to her sister ire
 * Pettanko - Akira
 * Primal Scene -
 * . Depending on how you see it, it may or may not overlap with.
 * It helps the anime is.
 * Right Through His Pants
 * Running Gag - Haruka really has trouble remembering which pocket he put his cellphone in
 * Scenery Porn - May overlap with Ghibli Hills
 * With everything this show does, this trope is NOT literal.
 * School Swimsuit
 * Sequel - Haruka na Sora, an expansion for the original visual novel.
 * Shipper On Deck: Ryouhei is this for Haruka and Nao.
 * Sibling Incest: Haruka and Sora. Making this:
 * Twincest
 * Smashing Watermelons
 * Squick - In-universe: Haruka was revolted and ultimately driven to tears at.
 * Stepford Smiler -
 * Sugar and Ice Personality - Sora in the visual novel.
 * Super Deformed - The omakes
 * Tall Dark and Bishoujo - Kazuha
 * Tsundere - Primarily Kazuha, but Sora as well, occasionally, including twin-tails while wearing her school uniform
 * Twelve Episode Anime
 * Twincest Yay - The fundamental appeal of the series
 * The Unfavorite - Kazuha is certain that Akira is one of these.
 * Unresolved Sexual Tension - Initially between Haruka and Kazuha,
 * Untrusting Community - Notably averted: the members of the community in general were greatly indebted to the Kasuganos' grandparents and are more than willing to help them out.
 * White Haired Pretty Boy, White Haired Pretty Girl - The Kasugano twins, minus the evil connotations for Haruka
 * Sugar and Ice Personality - Sora in the visual novel.
 * Super Deformed - The omakes
 * Tall Dark and Bishoujo - Kazuha
 * Tsundere - Primarily Kazuha, but Sora as well, occasionally, including twin-tails while wearing her school uniform
 * Twelve Episode Anime
 * Twincest Yay - The fundamental appeal of the series
 * The Unfavorite - Kazuha is certain that Akira is one of these.
 * Unresolved Sexual Tension - Initially between Haruka and Kazuha,
 * Untrusting Community - Notably averted: the members of the community in general were greatly indebted to the Kasuganos' grandparents and are more than willing to help them out.
 * White Haired Pretty Boy, White Haired Pretty Girl - The Kasugano twins, minus the evil connotations for Haruka
 * Unresolved Sexual Tension - Initially between Haruka and Kazuha,
 * Untrusting Community - Notably averted: the members of the community in general were greatly indebted to the Kasuganos' grandparents and are more than willing to help them out.
 * White Haired Pretty Boy, White Haired Pretty Girl - The Kasugano twins, minus the evil connotations for Haruka
 * White Haired Pretty Boy, White Haired Pretty Girl - The Kasugano twins, minus the evil connotations for Haruka