かってに改蔵
Katte ni Kaizou
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!
Names
| Original | かってに改蔵 (japanese) |
|---|---|
| Romaji | Katte ni Kaizou |
| English | — |
| Chinese | 改造新人类 (simplified · via wikidata) |
| Also known as | Katteni Kaizou |
Facts
Reception
| Community score | 6.70 / 10 |
|---|---|
| Bayesian score | 7.02 / 10 |
| Composite | 45.1 |
| On lists | 8,612 |
| Favourited | 37 (0.4%) |
| Completion | 79.0% |
| Drop rate | 7.6% |
| In backlog | 50.8% |
| Score spread σ | 1.82 |
Score distribution
14124736241395261655477458483925910137
Where it places
| Cohort | Value | Tier | Rank |
|---|---|---|---|
| Broadcast season | Spring 2011 | D | 56 of 86 |
| Studio | Shaft | E | 89 of 110 |
| Year | 2011 | D | 187 of 305 |
| Format | OVA (home video) | D | 653 of 944 |
| Length | OVA / Special | D | 925 of 1,260 |
| Genre | Sci-Fi | D | 990 of 1,409 |
| Demographic | Shounen | E | 1,042 of 1,219 |
| Era | Early 2010s | D | 1,051 of 1,627 |
| Season (all years) | Spring | D | 1,335 of 1,868 |
| Source material | Manga | D | 2,335 of 3,025 |
| Genre | Comedy | D | 2,472 of 3,488 |
| Origin | Japan | D | 5,020 of 7,157 |
Key staff
| Director | Akiyuki Shinbou, Naoyuki Tatsuwa, Hisaharu Iijima |
|---|---|
| Series composition | Fuyashi Tou, Katsuhiko Takayama |
| Character design | Hiroki Yamamura |
| Original creator | Kouji Kumeta |
Franchise — かってに改蔵
Related
| Relation | Year | Title |
|---|---|---|
| side story | 2011 | Katte ni Kaizou Specials |
AniList id 10191 · MAL id 10191 · record updated 2026-08-26