{{Mangaka}} specialising in (often surreal) {{Shonen}} GagSeries. Most known for ''SayonaraZetsubouSensei'', his only work ever to receive an AnimatedAdaptation for the longest time, and it was [[http://www.animenewsnetwork.com/news/2011-01-13/koji-kumeta-katteni-kaizo-manga-gets-anime-by-shaft recently announced that]] ''Katte ni Kaizou'' [[UnCancelled is getting an anime adaptation]]. Another one of his works ''Manga/{{Joshiraku}}'' [[http://www.animenewsnetwork.com/news/2012-04-02/joshiraku-anime-to-be-produced-by-j.c-staff was made into an anime and was produced by J.C Staff]] in 2012. Also notable for his ArtEvolution. Eternal enemy of KenAkamatsu. Kenjiro Hata of ''HayateTheCombatButler'' fame was formerly his assistant editor until early 2000s.

If his AuthorAvatar is to be believed, he is [[SelfDeprecation poor, lonely and constantly under stress.]] Also far less successful than in real life.

His works include, in chronological order:

* '''''YukeNangokuIceHockeyBu''''': Japanese student returns from Canada and attempts to introduce ice hockey to his new school... but before long the manga becomes more preoccupied with silly penis jokes and even more silly sexual puns ([[Creator/RichardWagner Wagner]] (the composer) -> Vaginer). According to the author, "a manga that is embarrassing to buy and embarrassing to read, but even more embarrassing to the one who is writing it".
* '''''PRootParadise''''' Haruhei is studying to enter the university. At his prep school, he meets Natsuki, the girl of his dreams. He is shocked to learn that she is working as a hostess and comes up with various plans to make her stop this, but despite his efforts, Natsuki keeps working, and Haruhei himself just enters deeper and deeper into the hostess club business.
* '''''SodatteDarling''''' Urara is not satisfied with any of the guys around her, and decides to raise her own ideal man from the elementary school student she so conveniently happens to be engaged to. Kumeta's first and last romantic comedy manga, for good reason.
* '''''TaiyouNoSenshiPokapoka''''': InTheStyleOf a ShonenJump-esque action-comedy, a boy obsessed with digging finds a magical bracelet, and then goes on an adventure to find the mythical Shambhala, together with the prehistoric boomerang-wielding warrior Pokapoka. On the way, they encounter the school's World Domination club, gigantic clay robots, black drills and many other things.
* '''''KatteNiKaizo''''': Follows CloudCuckooLander Kaizo, a delusional high school student insistant that aliens, conspiracies and cyborgs are all very real, and his friend Umi, apparently the OnlySaneMan [[spoiler: but really a total loony]]. Possibly the spiritual predecessor to ''TheMelancholyOfHaruhiSuzumiya'', although on a much more disturbed angle and not as TropeOverdosed.
* '''''SayonaraZetsubouSensei''''': Suicidal teacher meets class full of crazy. HilarityEnsues. And plenty of MindScrew.
* '''''{{Joshiraku}}''''': Five girls who are Rakugo artists, talking about random things that usually get our of hand. Unlike his previous works, he does not do the illustrations but rather Yasu of ''LightNovel/{{Toradora}}'' fame does.

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!! Tropes in his work

* ArtEvolution: An extreme example. In the beginning, his style was an uninspired, typical shounen style. It's since evolved to be more expressive, blocky, and thickly lined. [[TropesAreNotBad A very positive example]].
* OnlySixFaces: Manages to turn this into a major plot point in ''Manga/SayonaraZetsubouSensei''. It doesn't come up until the [[GainaxEnding ending, though.]] Otherwise, it's used as a stylistic decision.