Ranked #2777
Katte ni Kaizou

Katte ni Kaizou

Alternative Titles

Synonyms: Katteni Kaizou
Japanese: かってに改蔵


Type: OVA
Episodes: 6
Status: Finished Airing
Aired: May 23, 2011 to Oct 26, 2011
Producers: Shaft
Duration: 23 min. per episode
Rating: R+ - Mild Nudity
L represents licensing company


Score: 7.121 (scored by 5422 users)
Ranked: #27772
Popularity: #1713
Members: 15,260
Favorites: 20
1 indicates a weighted score
2 based on the top anime page.

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Katsu Kaizou is a very gullible, 17-year-old high school student and a believer in science fiction, aliens, ghosts, UFOs, conspiracies, etc. He thinks that everything going on around him is the result of some sort of alien plot to take over the world. Each story is pretty much self-contained and is completely bizarre. Kaizou joins the school's science club, makes new friends, and ends up coming in contact with all sorts of strange things like log people, deadly sushi, pee-blades, scary infections, robot invasions, ghosts, living dolls, and more!

Related Anime

Adaptation: Katte ni Kaizou
Side story: Katte ni Kaizou Specials

Characters & Voice Actors

Katsu, Kaizou
Katsu, Kaizou
Sakurai, Takahiro
Sakurai, Takahiro
Iwao, Junko
Iwao, Junko
Natori, Umi
Natori, Umi
Kitamura, Eri
Kitamura, Eri
Saien, Suzu
Saien, Suzu
Toyosaki, Aki
Toyosaki, Aki
Tsubouchi, Chitan
Tsubouchi, Chitan
Saito, Chiwa
Saito, Chiwa


Kubota, Mitsutoshi
Ooshima, Miku
Assistant Producer
Tatsuwa, Naoyuki
Director, Episode Director, Storyboard
Shinbou, Akiyuki

Write a review | More reviewsReviews

Mar 30, 2012
The first word that came to my head after watching the first episode of Katte ni Kaizou was, "...What?"

I kid you not, this is the weird, dumbest and most insane gag-humor anime I have ever seen...
From the mind that created "Sayonara, Zetsubou Sensei," I have to say Katte ni Kaizou is even MORE absurd, if you can believe that...
Basically, it's Sayonara, Zetsubou Sensei meets Bobobo... Can you wrap your mind around that? No? Me neither... I'm still wondering how an anime like this words... but the thing is: it works, and that's what matters most.

Story: 7/10
It's so dumb, it's funny!
Katsu Kaizou is a 17-year-old super-genius read more
I found this review Helpful  Not Helpful
Jul 31, 2014
Looking for an anime with the wackiest, silliest, dirtiest humor out there? Want an anime that's so ridiculous and over the top that it would put other comedy anime to shame? Look no further than Katte Ni Kaizou, translated as, "Kaizou Who Does As He Pleases!"
Story: 5
To tell you the truth, the story description on the site is only true for the first two episodes. The whole idea about being a gullible boy with delusions isn't really carried out throughout the rest of the series. Still, it doesn't detract from how ridiculous this anime is.
Art: 10
The art is pretty memorable. Shaft made the characters' read more
I found this review Helpful  Not Helpful
Aug 30, 2013
This by far is one of the most unique anime out there. I mean everything is unique, the storyline, the characters, even the animation! This anime can be greatly appreciated by comedy lovers and users who have a passion for let's say 'crazed' storylines. But be warned, most of the comedy in this one are 'dirty', in other words related to sex, and are just weird. Compared to other comedy/gag anime out there this has to be the best.

Now let's take a deeper look at the sound and animation since we identified most of the other areas. I would give the sound a 9/10, since read more
I found this review Helpful  Not Helpful
Jul 7, 2012
This series is well written, has good artwork, good animation, good characters, and a decent soundtrack. So why only a 7? The reason it's so good, and the reason it's not a 10 is the same: it's a prototype for Sayonara Zetsubou Sensei.

It's pretty simple really. The characters look, sound, and act like the characters in SZS. The animation, soundtrack, sound effects are all similar for obvious reasons. The quirky randomness is the same. The way the story seems to take place at school, but the characters meet around town and engage in silliness is the same.

But as stated earlier, it's a prototype. read more
I found this review Helpful  Not Helpful


Tha manga of Katte ni Kaizou get spiced up with social critic later on (around volume 6), inspiring the artist into creating something even more awesome, SZS it is. His work tell you a bastardized version of what is hot in the land of the rising sun. He is probably the best social critic mangaka you can think of.

The artist Kumeta Kouji used to be a pure manga comedian with no social critic added, and he did well. Katte ni Kaizou is just another quality comedy filled with wordplay, overaction, and parodies. His older manga is finally animated by SHAFT, with his art direction preserved well plus Shinbo style beautification. Everything about the animated version of Kaizou will remind you of SZS seasons you have watched over the last few years.
These two animes are comedies, and most of their jokes are quite perverted. Of the two, Katte ni Kaizou is bit darker than Setokai Yakuindomo. Both are about the everyday lives of a group of high school kids, who are not normal at all.
Same style of humour, perverted, dirty, arranged mainly with teenager boys betwen them.
reportRecommended by MCL - Add to favorites
Bizarre humor and a lot of completely ridiculous situations and characters with a school setting. Nichijou is a bit more PG-rated in its content, while Katte ni Kaizou is like a hard PG-13 in contrast, but it's quite likely that a fan of one will enjoy the other.
reportRecommended by Numi - Add to favorites
black humour, lots of trivial but unbearable funny moments
Both anime have strange clients; Katte ni Kaizou has more perverted clients though.

Opening Theme

"Katte ni Kaizou Shitemo Iize (かってに改造してもいいぜ)" by Ichirou Mizuki & Tokusatsu (水木一郎と特撮)

Ending Theme

"Nani ga Nani de Nani nano... (ナニがナニでナニなの・・・)" by Ryoko Shintani (新☆谷良子)

Recent News

SHAFT To Animate Kumeta Koji's Manga Katte ni Kaizo [Update Feb 9] ( 1 2 )
67 replies by Yanoflies »»
04-28-11, 1:05 AM

Recent Forum Discussion

Poll: Katte ni Kaizou Episode 1 Discussion ( 1 2 )
58 replies by FalloutShounen3 »»
09-22-14, 8:31 PM
Poll: Katte ni Kaizou Episode 5 Discussion
15 replies by »»

Fansubbing Groups

Which fansubbers do you like the best? Click + to approve of their subs for this show. Click - if you don't think they did such a great job.
Elesa & Suimasen [Elesa-Suimasen] 45 of 46 users approve
Dreamers Team [DT-RU] (Russian) 12 of 13 users approve
Nutbladder [Nutbladder] 12 of 18 users approve
Katamuki [Katamuki] (French) 3 of 3 users approve
Group list truncated, click to view all

Related Clubs

Horie Yui Fanclub, Kitamura Eri Fanclub, Studio SHAFT, Katte ni Kaizou Fanclub, The OVA/ONA/Anime Movie club

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