17-year-old Hikari Hamura ([[GenderBlenderName a boy]]) is an aspiring artist who, after accidentally writing "Hikaso" on his shoes, has been saddled with the nickname "Picasso". Personally, he prefers Leonardo Da Vinci. Anti-social, he is one of the only two members of the "Riverside Club", where he goes and draws by the river after school. The only other member, Chiaki Yamamoto, is the one responsible for his nickname.

One afternoon, an out-of-control helicopter crashes into them and they die. [[ShaggyDogStory The end!]]

Actually, Chiaki dies, but Picasso survives with only a few scratches. A few days later, Picasso reaches into his pocket and pulls out a miniature version of Chiaki! It turns out that when she died, she prayed to the gods to spare Picasso and his talent, a wish that was granted. In exchange, though, Picasso must use his abilities to help others. When he sees someone's darkness, he draws what's present in their heart, then enters the drawing (leaving an unconscious body behind) and tries to fix the problem.

''Genkaku Picasso'' (Literally means "Hallucination Picasso") is a 3-volume-manga by Usamaru Furuya.

!!''Genkaku Picasso'' provides examples of:

* AllJustADream: As implied by the title, there's a chance that Picasso is making everything up because of his grief over Chiaki's death. [[spoiler: Sort of. The rotting on his arm is really his watch, and Angel!Chiaki is the note she gave him. At least, that's how it appears to everyone else.]]
* ArtShift: Happens a lot during Picasso's dives.
* BittersweetEnding: [[spoiler:Picasso finally manages to do enough good to overcome his condition. Chiaki moves on to the afterlife, but not before letting Picasso know how she felt about him. Though saddened by her loss, Picasso still has plenty of new friends and has done a large amount of good for his community.]]
* BrokenPedestal: [[spoiler:Maria Duel]] to Kana. It turns out that [[spoiler:Maria Duel isn't as dark as her music suggests]].
* CannotSpitItOut: Sugiura's father cannot tell his son that he has money troubles because [[spoiler:his work suffered after his wife's death]] until Picasso reaches out to him.
* ClassRepresentative: Kotone Ogura.
* DidNotGetTheGirl: [[spoiler:Though Picasso did come to realize how he felt about Chiaki, it was too late and she had already gone to the afterlife.]]
* DrivenToSuicide: [[spoiler:Hishida comes close, but Sugiura stops her in the nick of time.]]
* EducationMama: [[spoiler:Yuto Honda's mother is revealed to be one of these. She gets better.]]
* EpiphanyTherapy: Once Picasso has done his thing, the person gets a burst of energy and feels better. Conclusions to the story show them still continuing to gain help to finish overcoming their problems.
* FemaleMisogynist: One girl, due to seeing girls in real life and guys in [[{{Yaoi}} idealized stories]].
* {{Foil}}: Picasso and Sugiura.
* GayngstInducedSuicide: Attempted with [[spoiler:Hishida]]. She ultimately lives.
* GenderBlenderName: Picasso's real name, Hikari. Commented on in [[spoiler:Hishida]]'s chapter, where [[spoiler:she states that she resents the fact that she wasn't given a gender neutral name]].
* GirlfriendInCanada: Sugiura's friend Ota has one at first. Not in Canada, but he claims it's a long-distance relationship.
* TheGloriousWarOfSisterlyRivalry: A minor example. Part of the reason Kana got into Maria Duel was because she was worried there was nothing that made her unique like her sister. Meanwhile, part of the reason Akane started modelling was because she wanted to be able to express herself like Kana.
* {{Hikikomori}}: Yuto Honda is a recovering one.
* IdolSinger: Moe Sakura aspires to be one.
* LastNameBasis: While most of the characters have full names, Sugiura, Manba and Ota are referred to by their last names only.
* LimitedWardrobe: Picasso is always seen wearing [[SchoolUniformsAreTheNewBlack his school uniform]], even on weekends.
* LonersAreFreaks:
** Picasso's classmates thought he was odd even before he started passing out everywhere. Manba is very concerned when he thinks that the [[ItMakesSenseInContext S&M-magazine-reading, clarinet-licking nosebleed guy]] is interested in his girlfriend. He's also a bit sullen when he realizes that Picasso is pretty much his only friend.
** Yuto is a loner too. He became what's known as a "hikikomori" - he withdrew from school because he couldn't connect with others anymore.
* LongHairedPrettyBoy: Hishida. [[spoiler:Though she is not, it turns out, a ''boy''.]]
* MaliciousMisnaming: Hikari miswrote the last character of his first name on his school slippers, and people teased him by calling him "Hikaso." They then take it one step further because of his drawing skills and calls him "Picasso".
* MementoMacGuffin: [[spoiler: Chiaki's note.]]
* MissingMom: Sugiura's.
* NiceGuy: Hishida.
* NoCelebritiesWereHarmed: William Borise is a rather blatant {{Expy}} of Creator/WaltDisney.
* OrWasItADream: [[spoiler:The ending is ambiguous about how much of Picasso's experiences were real or not.]]
* ShowWithinAShow: ''Arengurion'', some kind of mecha anime, appears several times in the series. From what we see of it, it bears similarities to both ''Anime/NeonGenesisEvangelion'' and ''Anime/TengenToppaGurrenLagann''.
* SociallyAwkwardHero: Picasso, full stop. He gradually gets better about this as his adventures have him making friends and getting out more.
* SpiritAdvisor: Chiaki.
* StalkerWithACrush: Manba seems to be one of these to Kotone Ogura. [[spoiler:Subverted. While he ''does'' have a crush on her, it turns out that the images of her in bondage were from a magazine that he found, and he was worried she was in some kind of trouble.]]
* ThereAreNoTherapists: There are certainly a lot of kids in Picasso's school with problems...
** Chiaki, when she was alive, was very interested in psychology. When Picasso and her help people, she is usually the one who figures out why they're depressed. On more than one occasion she solves the situation and cheers up the person.
** When Picasso first freaks out at seeing his rotting arm, his teacher, thinking that he's still coping with the accident, offers to recommend him to a doctor.
* {{Transgender}}: [[spoiler:Yosuke "Jeanne" Hishida. She's handled quite maturely for a shonen character -- after the initial confusion, she's fully accepted as a girl by the rest of her class, and her implied crush on Picasso is treated sympathetically.]]
* VictimOfTheWeek: Picasso ends up helping someone each story. Lampshaded in the second chapter when he gripes he helped someone last week and has to do it again so soon.
* YaoiFangirl: Kotone Ogura. [[spoiler:She thinks girls are dirty because her female classmates picked on her when she was a child.]]