''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 completed manga series: one by Miyako Ritsu, subtitled ''Akai Hitomi wa Shitteiru'' (''The Red Eye Has a Clue''), and the other by Oda Suzuka, who is the character designer for the {{anime}} as well. It has also inspired a live-action drama, a stage play, and a ThirteenEpisodeAnime series by Creator/BeeTrain which aired on NHK in Fall 2010.
!!''Psychic Detective Yakumo'' provides examples of:


[[folder:Novel series]]
* JapanesePronouns: 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 [[CharacterDevelopment much less polite than how he currently refers to himself university]].
* TrueCompanions: Gotô spends several moments of Volume 8 thinking about how he thinks of Haruka and Yakumo as family members (of sorts).
* VitriolicBestBuds: Gotô and Yakumo, Type 2. [[spoiler:Gotô risks and eventually loses his job helping Yakumo escape when the latter is under suspicion of murder.]]

[[folder:Shared by all series']]
* AbusiveParents:
** [[spoiler:Yakumo]]'s mother attempted to strangle him when he was younger.
** In Volume 6 of the novel series, it is revealed that [[spoiler:Yakumo's father has also been DeadAllAlong, 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 [[spoiler:red eyes]] reminded their mother of his father ([[spoiler:her rapist]]), which made her panic and [[spoiler:drop the newborn baby.]]
* AmateurSleuth: Yakumo, obviously.
* AnimalMotifs: Yakumo resembling a cat when he's sleeping (and a caterpillar when he's in his sleeping bag), and Gotou resembling a bear.
* AnAstralProjectionNotAGhost: 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.
* CurtainsMatchTheWindow: Yakumo, when he has his contact lens on. Haruka in the Ritsu/Suzuka mangas and novels, but not the anime.
* DeadpanSnarker: Yakumo. ''Constantly''.
* FireForgedFriends: 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.
* FirstNameBasis: 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.
* FreakinessShame: 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."
* FriendOnTheForce: Gotou.
* HeartwarmingOrphan: Nao.
* HeIsNotMyBoyfriend: 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.
* HeroicSelfDeprecation: 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.
* JacobMarleyApparel: This is a constant throughout the series, and in both manga incarnations.
* IntergenerationalFriendship
* InvisibleToNormals: The aforementioned dead people.
* ISeeDeadPeople
* {{Kimodameshi}}: The first story happens because of one of these.
* TheKlutz: Ishii.
* KnightInSourArmor: 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.
* LimitedWardrobe. 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 [[spoiler: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.
* LoveAtFirstSight: 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.
* MagicEye: Yakumo has one normal black eye, and one red eye that can see ghosts. He wears a contact lens to cover it, though.
* MakeItLookLikeAnAccident: This happens to [[spoiler:Yuuichi]]/[[spoiler: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.
* MeaningfulName: Mentioned in the Ritsu manga adaptation and the anime, Yakumo means "multicolored clouds."
* {{Megane}}: Ishii. Also, Takaoka-sensei.
* NaiveEverygirl: 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.
* NotSoDifferent: Yakumo and Haruka. See HeroicSelfDeprecation.
* OneHeadTaller: Yakumo and Haruka.
* ParanormalInvestigation: Well, it ''is'' about a guy who can see ''ghosts''...
* ParentalAbandonment: [[spoiler:After attempting to strangle him]], Yakumo's mother disappeared. We also don't know what happened to his father. [[spoiler: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 DeadAllAlong.]]
* ParentalSubstitute: Yakumo's uncle Isshin Saitou.
* PetTheDog: As Yakumo starts [[DefrostingIceKing defrosting]], he slowly becomes less of a jerk to Haruka.
* PsychicPowers: Yakumo isn't literally psychic, but he can see and communicate with the dead.
* RedEyesTakeWarning: 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 [[spoiler:who is revealed to be Yakumo's father]] from the anime adaptation.
* SacrificialLamb: It varies between adaptations. In the Ritsu manga version--[[spoiler:Yuuichi and Shiori]], in the Suzuka version--[[spoiler:Kazuhiko]], and in the anime adaptation--[[spoiler:again, Yuuichi.]] In a way, it's easy to sympathize with Haruka, considering that all these people are [[spoiler:''her friends''.]]
* SensitiveGuyAndManlyMan: Ishii and Gotou.
* ShipTease: Yakumo and Haruka.
* ShrinesAndTemples: Seen from time to time since Yakumo's uncle is a Buddhist monk.
* SpiritAdvisor: Haruka's dead sister Ayaka is sort of one for Yakumo and Haruka (in all versions). In the Ritsu manga adaptation, [[spoiler:Shiori]] is also one for Haruka.
* TeethClenchedTeamwork: Yakumo and Gotô.
* UnfinishedBusiness: 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 [[spoiler:Shiori's feelings of guilt for involving Haruka in her murder.]]
* YouWakeUpInARoom: [[spoiler: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.]]

[[folder:Miyako Ritsu Manga Series]]
* ArmorPiercingSlap: Haruka delivers one to [[spoiler: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.
* CreepyChild / TheFaceless: The ghost of the boy from The Dark Tunnel arc.
* EyesAlwaysShut: Yakumo's uncle.
* HeroicBSOD: Haruka goes through one of these when she finds out that [[spoiler:Shiori is dead.]] Averted big time with [[spoiler:Tetsuya]], who is unable to see the wrong in his actions, even after getting slapped by Haruka.
* INeverSaidItWasPoison: Haruka realizes that [[spoiler: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).
* [[ItsAllAboutMe 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, [[SelectiveObliviousness he'll just laugh it off]]. As it turns out, Yakumo is ''completely right''.
* [[ItsPersonal It's Personal]]: For Haruka in the Message From The Dead arc when her friend Shiori [[spoiler:is killed.]]
* {{Keet}}: Tatsuya.
* {{Meganekko}}: Yuri Shinohara was one in the Miyako Ritsu manga.
* TheNicknamer: Yakumo often calls Haruka a "busybody" for always trying to solve other people's problems.
* NotWhatItLooksLike: 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 ShipperOnDeck for Haruka and Yakumo.
* PsychopathicManchild: [[spoiler:Tatsuya]] shows elements of this.
* SelectiveObliviousness: Tatsuya. [[spoiler:To possibly a very terrifying degree.]]
* TeacherStudentRomance: In The Locked Door arc, Yuri Shinohara had an affair with [[spoiler:Takaoka-sensei]] and threatened to tell his wife.
* WrongGenreSavvy: In the Ritsu adaptation, Tatsuya thinks Yakumo dislikes him because he's [[GreenEyedMonster "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).

[[folder:Oda Suzuka Manga Series]]
* GeniusSweetTooth: 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.
* TeenPregnancy: In the Oda Suzuka version, where [[spoiler:Yuuichi]] is the culprit of The Closed Door arc. [[spoiler:He indirectly killed Yuri Shinohara following a fight because she got pregnant.]]

[[folder:Anime Adaptation]]
* AdaptationDistillation[=/=]AdaptationExpansion: 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 acquaintance she met at Miki's party.
* AdaptationDyeJob: In both manga adaptations and the novels, Haruka has [[CurtainsMatchTheWindow matching brown hair and eyes]]. In the anime adaptation, she has pink hair and [[PurpleEyes light purple eyes]]. Her hairstyle also varies between adaptations.
* AdultsAreUseless: 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.
* AnimatedAdaptation: Made into a ThirteenEpisodeAnime, based on the novel series.
* BreakTheCutie: Implied with Yakumo's mother, [[spoiler:who was revealed to have been kidnapped by Yakumo's father and was impregnated by him.]] The antagonists attempt to do this to [[spoiler:Haruka]] in order to break Yakumo, but [[spoiler:Shunsuke Takeda]] protects her.
* CaptainObvious: [[spoiler: 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!
* CoolShades: The mysterious silver haired BigBad and his female accomplice.
** They frequently practice SunglassesAtNight.
* CuteMute: Nao.
* [[spoiler:DeadAllAlong: Yakumo's mother and Shinsuke Takeda.]]
* GratuitousEnglish:
** A bit in the opening song.
** Not to mention Nanase Miyuki's singing a whole verse of London Bridge is Falling Down.
* GreenEyedMonster: 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.
* HollywoodFire: The first episode.
* {{Jerkass}}: Yakumo is a bit more of a cocky jerk in the anime adaptation than its manga counterparts.
* LighterAndSofter: 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 [[ThirteenEpisodeAnime 13 episodes]]), but nevertheless some of the twists in the anime are much more lighter compared to its manga counterparts.
* [[spoiler:LukeIAmYourFather: The silver haired antagonist is Yakumo's father.]]
* [[MementoMacGuffin Memento [=MacGuffin=]]]: Seemingly the red gemmed necklace that Yakumo always hold onto. It belonged to his mother. He later lets Haruka hold onto it.
* MistakenForGay: 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.
* MysteriousProtector: [[spoiler:Shunsuke Takeda]] seems to be one for Yakumo and Haruka.
* TheReveal: The silver haired antagonist turns out to be [[spoiler:Yakumo's father]], and Shinsuke Takeda is [[spoiler:Yakumo's mother's fiance.]]
** The silver haired antagonist's female accomplice is [[spoiler:Nanase Miyuki.]]
* ShoutOut:
** A self ShoutOut in episode 8. Makoto holds a card with the words D-Station written on top. D-Station is a subdivision of Creator/BeeTrain 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:''' [[Film/ReturnOfTheJedi I can feel it, Yakumo ... Your strong hatred!]]
* ThirteenEpisodeAnime
* [[spoiler:TogetherInDeath: Azusa and Shinsuke Takeda.]]
* 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].
* UnbelievableSourcePlot: Detective Gotou tends to keep the fact he's using a teenage boy who sees ghosts to help solve cases well under wraps. Yakumo himself, not so much, although in the beginning he does hide his ability to see ghosts... by using some tricks to make people think he's plain psychic.
* WhatHappenedToTheMouse?: We're not shown what happens to [[spoiler: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.