Psychic Detective Yakumo

Psychic Detective Yakumo (or Shinrei Tantei Yakumo) is a series of novels by Manabu Kaminaga.

One day, college student Haruka Ozawa's friend Miki goes on a test of courage with a friend at a building said to be haunted. Suddenly she loses consciousness for no apparent reason, and must be admitted to the hospital. Due to the suspicious circumstances, Haruka decides to enlist the help of the cynical, sarcastic Yakumo Saitou, a supposed psychic. After realizing he's a fraud when it comes to having psychic abilities, he reveals that he can see ghosts, and will assist her. During the investigation, they get attacked, and it turns out his left eye is red, and that this is the eye with which he can see ghosts.

The series has spawned two manga series (one by Miyako Ritsu, subtitled Akai Hitomi wa Shitteiru [The Red Eye Has a Clue] [completed], one by Oda Suzuka [ongoing], who is the character designer for the Anime as well), a live-action drama, a stage play, and a Thirteen Episode Anime series by Bee Train.

No relation to Yukari Yakumo.

Tropes used in Psychic Detective Yakumo include:

Novel series

Japanese Pronouns: In the main series, university student Yakumo refers to himself as "boku." The "Secret Files: Kizuna" volume has Yakumo referring to himself as "ore" during middle school, which was generally much less polite than how he currently refers to himself university.
Nakama: Gotô spends several moments of Volume 8 thinking about how he thinks of Haruka and Yakumo as family members (of sorts).
Vitriolic Best Buds: Gotô and Yakumo, Type 2. Gotô risks and eventually loses his job helping Yakumo escape when the latter is under suspicion of murder.

Shared by all series'

Abusive Parents/Offing the Offspring:
- Yakumo's mother attempted to strangle him when he was younger.
- In Volume 6 of the novel series, it is revealed that Yakumo's father has also been Dead All Along, his ghost trying to drag Yakumo down to his own level of despair so he can take over his body.
- Nao used to have a twin brother. His red eyes reminded their mother of his father (her rapist), which made her panic and drop the newborn baby.
Amateur Sleuth: Yakumo, obviously.
Animal Motifs: Yakumo resembling a cat when he's sleeping (and a caterpillar when he's in his sleeping bag), and Gotou resembling a bear.
An Astral Projection, Not a Ghost: In the midst of all the actual ghosts, one apparent ghost turns out to be the projected spirit of a terminally ill but still-living girl, whose anxiety about her impending death causes her to project her spirit to other people at night while she's sleeping.
Bishounen: Yakumo. Also a good amount of the other male college students that pop up.
But Your Wings Are Beautiful: When Haruka discovers Yakumo's red eye after he wounded from an attack, Yakumo tells her she must be disgusted (in the Ritsu version) or thinks that she would scream (Suzuka version). Instead, Haruka is the complete opposite and reassures him of it. She even thinks it's "pretty."
Curtains Match the Window: Yakumo, when he has his contact lens on. Haruka in the Ritsu/Suzuka mangas and novels, but not the anime.
Deadpan Snarker: Yakumo. Constantly.
Dead Older Sister: Haruka's older twin sister Ayaka, whose death Haruka blames herself for.
Fire-Forged Friends: Yakumo and Gotou use each other for the common goal of solving cases. Yakumo uses the information Gotou possesses as a police detective, while Gotou uses Yakumo for his ability to see the dead.
First-Name Basis: In both manga versions, Yakumo tells Haruka to call him by his first name so it would less of a hassle. In the anime, she starts calling him "Yakumo-kun" on her own, much to Yakumo's initial chagrin.
Friend on the Force: Gotou.
Heartwarming Orphan: Nao.
He Is Not My Boyfriend: Yakumo and Haruka are often mistaken for a couple. At one point in the Ritsu manga and the anime adaptation, Haruka denies that Tatsuya is her boyfriend.
Heroic Self-Deprecation: Yakumo and Haruka. Yakumo feels he can not help others and can only "see" using his red eye, while (in the Ritsu manga adaptation) Haruka feels she can not help others in spite of so many people helping her.
Jacob Marley Apparel: This is a constant throughout the series, and in both manga incarnations.
Intergenerational Friendship
Invisible to Normals: The aforementioned dead people.
I See Dead People
Kimodameshi: The first story happens because of one of these.
The Klutz: Ishii.
Knight in Sour Armor: Yakumo is one of these. He's always got a rude, sarcastic remark for everyone, but he still assists the police department in solving murder mysteries.
Limited Wardrobe. Come on, a female college student who wears the same outfit everyday? It's even weirder than the ghosts.
- At least she finally changed in the last anime episode for Isshin's funeral. Everyone did, actually.
- In the novels, we often get updates on what she's wearing when the story is told from Ishii's perspective.
Love At First Sight: In the Suzuka manga version and anime adaptation, Ishii sure seems a bit smitten with Haruka. In the former, he even thought she was an angel.
Make It Look Like an Accident: This happens to Yuuichi/Kazuhiko (in the Ritsu version and Suzuka version, respectively)'s murder, which is supposed to look like suicide, and to the ghosts' murders in the Dark Tunnel plot in the Ritsu manga.
Meaningful Name: Mentioned in the Ritsu manga adaptation and the anime, Yakumo means "multicolored clouds."
Megane: Ishii. Also, Takaoka-sensei.
Mismatched Eyes: Yakumo has one normal black eye, and one red eye that can see ghosts. He wears a contact lens to cover it, though.
Naive Everygirl: Haruka is an older, more mature version, who doesn't have body image or tormentors to worry about.
- In one of the episodes, Haruka is shown to be a bit self-conscious about her body image.
Not So Different: Yakumo and Haruka. See Heroic Self-Deprecation.
One Head Taller: Yakumo and Haruka.
Paranormal Investigation: Well, it is about a guy who can see ghosts...
Parental Abandonment: After attempting to strangle him, Yakumo's mother disappeared. We also don't know what happened to his father. In the anime, his father turns out to be the silver haired antagonist that's been trying to provoke Yakumo, and his mother is revealed to have been Dead All Along.
Parental Substitute: Yakumo's uncle Isshin Saitou.
Pet the Dog: As Yakumo starts defrosting, he slowly becomes less of a jerk to Haruka.
Psychic Powers: Yakumo isn't literally psychic, but he can see and communicate with the dead.
Red Eyes, Take Warning: Yakumo's left eye is red and allows him to see ghosts. Yakumo's uncle wears a red contact lens to match Yakumo's left eye in order to understand him a little more and share his burden. And the mysterious silver haired antagonist who is revealed to be Yakumo's father from the anime adaptation.
Sacrificial Lamb: It varies between adaptations. In the Ritsu manga version--Yuuichi and Shiori, in the Suzuka version--Kazuhiko, and in the anime adaptation--again, Yuuichi. In a way, it's easy to sympathize with Haruka, considering that all these people are her friends.
Sensitive Guy and Manly Man: Ishii and Gotou.
Ship Tease: Yakumo and Haruka.
Shrines and Temples: Seen from time to time since Yakumo's uncle is a Buddhist monk.
Spirit Advisor: Haruka's dead sister Ayaka is sort of one for Yakumo and Haruka (in all versions). In the Ritsu manga adaptation, Shiori is also one for Haruka.
Teeth-Clenched Teamwork: Yakumo and Gotô.
Unfinished Business: This is why ghosts are attached to the human world and cannot move on. They cling onto feelings, whether it's the desire to be avenged (The Locked Door / Closed Door arc) to the desire to live (The Dark Tunnel arc) to genuine feelings for another (Ayaka's desire to watch over Haruka and the Message to the Dead arc, specifically Shiori's feelings of guilt for involving Haruka in her murder.
You Wake Up in a Room: When Takaoka-sensei (in the Ritsu version) / Yuuichi (in the Suzuka version) thinks he killed Yuri after hitting her a little too hard, he hides her body in the basement. Turns out she wasn't dead after all. Until she died trying to get out of the room.

Miyako Ritsu Manga Series

Armor-Piercing Slap: Haruka delivers one to Tatsuya in the Ritsu manga when it's clear that, in spite of being the culprit for an accidental hit-and-run murder, he's only considered for his own welfare, triggering Haruka's memories of her late sister.
Creepy Child / The Faceless: The ghost of the boy from The Dark Tunnel arc.
Eyes Always Shut: Yakumo's uncle.
Heroic BSOD: Haruka goes through one of these when she finds out that Shiori is dead. Averted big time with Tetsuya, who is unable to see the wrong in his actions, even after getting slapped by Haruka.
I Never Said It Was Poison: Haruka realizes that Takaoka-sensei murdered Yuri Shinohara when he mistakenly asked who Haruka thinks murdered Yuri, as there was a lack of evidence as to identity how the victim died or if the victim died (as Yuri's body hadn't been discovered yet).
It's All About Me: Tatsuya. According to Yakumo, he's inconsiderate for always only thinking of himself and what solely affects him. And if anything doesn't go his way, he'll just laugh it off. As it turns out, Yakumo is completely right.
It's Personal: For Haruka in the Message From The Dead arc when her friend Shiori is killed.
Keet: Tatsuya.
Meganekko: Yuri Shinohara was one in the Miyako Ritsu manga.
The Nicknamer: Yakumo often calls Haruka a "busybody" for always trying to solve other people's problems.
Not What It Looks Like: After Haruka goes to Yakumo's place to consult him on seeing a ghost in her apartment, he starts taking off his shirt to change into a warmer one. Gato happens to pick that time to drop in on Yakumo to ask him about a case. Subverted in that Gato knows it's not what it looks like and is simply the Shipper on Deck for Haruka and Yakumo.
Psychopathic Manchild: Tatsuya shows elements of this.
Selective Obliviousness: Tatsuya. To possibly a very terrifying degree.
Teacher-Student Romance: In The Locked Door arc, Yuri Shinohara had an affair with Takaoka-sensei and threatened to tell his wife.
Wrong Genre Savvy: In the Ritsu adaptation, Tatsuya thinks Yakumo dislikes him because he's "close friends" with Haruka. Yakumo just doesn't like him (especially after Tatsuya unintentionally "disrespected the dead" in Yakumo's perspective by thinking a ghost was killing people in a discriminable way).

Oda Suzuka Manga Series

Genius' Sweet Tooth: Yakumo. This is lampshaded in the Oda Suzuka series, where after interrogating the ghost possessing Miki, he needs to rest a while. It cuts to him eating ice cream at a cafe, with his excuse being that after "being forced to use his head", he needs sugar.
Teen Pregnancy: In the Oda Suzuka version, where Yuuichi is the culprit of The Closed Door arc. He indirectly killed Yuri Shinohara following a fight because she got pregnant.

Anime Adaptation

Adaptation Distillation/Adaptation Expansion: Plot elements of the manga arcs have been shortened or cut out to fit the thirteen episode series, and some character roles have been changed or added in. For example, Tatsuya is a co-worker of Haruka's instead of an aquaintance she met at Miki's party.
Adaptation Dye Job: In both manga adaptations and the novels, Haruka has matching brown hair and eyes. In the anime adaptation, she has pink hair and light purple eyes. Her hairstyle also varies between adaptations.
Animated Adaptation: Made into a Thirteen Episode Anime, based on the novel series.
Adults Are Useless: Haruka's mother seems strangely fine with sending her daughter into what could be a dangerous situation. She barely puts up a fight to talk her daughter out of it.
Break the Cutie: Implied with Yakumo's mother, who was revealed to have been kidnapped by Yakumo's father and was impregnated by him. The antagonists attempt to do this to Haruka in order to break Yakumo, but Shunsuke Takeda protects her.
Captain Obvious: Doctor Sakakibara, upon seeing Haruka and Detective Gotou, runs away from them. They had never met him before, but Gotou chases him anyway.

Haruka: Why are you going after him?
Gotou: Obviously, because he's running away!

Cool Shades: The mysterious silver haired Big Bad and his female accomplice.
- They frequently practice Sunglasses at Night.
Cute Mute: Nao.
Dead All Along: Yakumo's mother and Shinsuke Takeda.
Foe Yay: Well, the blond haired woman working for the Big Bad sure seems interested in Yakumo...
Gratuitous English:
- A bit in the opening song.
- Not to mention Nanase Miyuki's singing a whole verse of London Bridge is Falling Down.
Green-Eyed Monster: Haruka was a little saddened to see Yakumo with another girl in the second episode, but as it turns out, the girl was the client who had asked him to investigate the episode's ghost.
Jerkass: Yakumo is a bit more of a cocky jerk in the anime adaptation than its manga counterparts.
Hollywood Fire: The first episode.
Lighter and Softer: Certain episodes--such as The Locked Room arc and The Dark Tunnel arc from the Ritsu manga adaptation--based on the manga arcs have been altered to a degree (thanks in part to the fact that the anime will only have 13 episodes), but nevertheless some of the twists in the anime are much more lighter compared to its manga counterparts.
Luke, I Am Your Father: The silver haired antagonist is Yakumo's father.
Memento MacGuffin: Seemingly the red gemmed necklace that Yakumo always hold onto. It belonged to his mother. He later lets Haruka hold onto it.
Mistaken for Gay: Yakumo hilariously convinces Gotou that Ishii has a thing for him. Ishii doesn't; he just loves the occult and thought Gotou was a psychic detective instead of Yakumo. And he actually has a thing for Haruka.
Mysterious Protector: Shunsuke Takeda seems to be one for Yakumo and Haruka.
The Reveal: The silver haired antagonist turns out to be Yakumo's father, and Shinsuke Takeda is Yakumo's mother's fiance.
- The silver haired antagonist's female accomplice is Nanase Miyuki.
Shout-Out:
- A self Shout-Out in episode 8. Makoto holds a card with the words D-Station written on top. D-Station is a subdivision of Bee Train the studio that animates the series. Besides the name, even the address is the same.
- One takes place in episode 12. Read the quote, then no further explanation is needed:

Silver Haired Antagonist: I can feel it, Yakumo ... Your strong hatred!

Thirteen Episode Anime
Tsundere: There's really no other way to describe Yakumo.

Yakumo: If I'm bored to death that day and have errands to run nearby, I might make an appearance [to your concert].

Together in Death: Azusa and Shinsuke Takeda.
What Happened to the Mouse??: We're not shown what happens to Tatsuya in the end of third episode, but it can be assumed he'd been arrested for the hit-and-run. The Ritsu manga adaptation, however, sheds a little more light on this.