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!
Katte ni Kaizou has finished airing and it has 6 Episodes. It is also Known as: かってに改蔵, Katteni Kaizou
Genres: Parody , Comedy , Absurdist Humour , School Clubs , Science Fiction , School Life
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Top 10 Anime Like Katte ni Kaizou [2025 List]
10. Heppoko Jikken Animation Excel♥Saga
Hyperactive Excel does anything and everything to try to please her lord, Il Palazzo, who wants to take over the planet. Excel's misadventures takes her and her partner, the ever-dying Hyatt, all over the world, meeting several strange people as they go. Everything is bizarre and goofy, as any kind of anime or entertainment genre gets mocked and spoofed.
Excel Saga has finished airing and it has 26 Episodes. It is also Known as: へっぽこ実験アニメーション エクセル♥サーガ, Heppoko Jikken Animation Excel♥Saga
9. Saiki Kusuo no Ψ-nan (TV)
To the average person, psychic abilities might seem a blessing; for Kusuo Saiki, however, this couldn't be further from the truth. Gifted with a wide assortment of supernatural abilities ranging from telepathy to x-ray vision, he finds this so-called blessing to be nothing but a curse. As all the inconveniences his powers cause constantly pile up, all Kusuo aims for is an ordinary, hassle-free life—a life where ignorance is bliss.
Unfortunately, the life of a psychic is far from quiet. Though Kusuo tries to stay out of the spotlight by keeping his powers a secret from his classmates, he ends up inadvertently attracting the attention of many odd characters, such as the empty-headed Riki Nendou and the delusional Shun Kaidou. Forced to deal with the craziness of the people around him, Kusuo comes to learn that the ordinary life he has been striving for is a lot more difficult to achieve than expected.
Note: Originally aired as 120 5min episodes that were later compiled into 24 normal lenght episodes
The Disastrous Life of Saiki K. has finished airing and it has 120 Episodes. It is also Known as: 斉木楠雄のΨ難, Saiki Kusuo no Psi Nan
8. Sakamoto desu ga?
Sophisticated, suave, sublime; all words which describe the exceedingly handsome and patently perfect Sakamoto. Though it is only his first day in high school, his attractiveness, intelligence, and charm already has the girls swooning and the guys fuming with jealousy. No one seems able to derail him, as all attempts at tripping him up are quickly foiled. His sangfroid is indomitable, his wits peerless. Will any of Sakamoto's classmates, or even teachers, be able to reach his level of excellence? Probably not, but they just might learn a thing or two trying...
Haven't You Heard? I'm Sakamoto has finished airing and it has 12 Episodes. It is also Known as: 坂本ですが？, Sakamoto desu ga?
7. Inou-Battle wa Nichijou-kei no Naka de
During a Literature Club meeting, the four club members—along with their faculty adviser's niece—suddenly find themselves with supernatural powers. Now capable of fabricating black flames, resident chuunibyou Jurai Andou is the most ecstatic about their new abilities; unfortunately, his own is only for show and unable to accomplish anything of substance. Moreover, he is completely outclassed by those around him: fellow club member Tomoyo Kanzaki manipulates time, Jurai's childhood friend Hatoko Kushikawa wields control over the five elements, club president Sayumi Takanashi can repair both inanimate objects and living things, and their adviser's niece Chifuyu Himeki is able to create objects out of thin air.
However, while the mystery of why they received these powers looms overhead, very little has changed for the Literature Club. The everyday lives of these five superpowered students continue on, albeit now tinged with the supernatural.
When Supernatural Battles Became Commonplace has finished airing and it has 12 Episodes. It is also Known as: 異能バトルは日常系のなかで, InoBato, Inou-Battle in the Usually Daze., Inou Battle Within Everyday Life
6. Nichijou
Nichijou primarily focuses on the daily antics of a trio of childhood friends—high school girls Mio Naganohara, Yuuko Aioi and Mai Minakami—whose stories soon intertwine with the young genius Hakase Shinonome, her robot caretaker Nano, and their talking cat Sakamoto. With every passing day, the lives of these six, as well as of the many people around them, experience both the calms of normal life and the insanity of the absurd. Walking to school, being bitten by a talking crow, spending time with friends, and watching the principal suplex a deer: they are all in a day's work in the extraordinary everyday lives of those in Nichijou.
Nichijou - My Ordinary Life has finished airing and it has 26 Episodes. It is also Known as: 日常, Everyday
5. Ike! Ina-chuu Takkyuubu
Inaho Jr. High's Boys Ping Pong Club has only 6 members, the club minimum. Takeda is your average nice guy. Kinoshita is good looking and popular with girls. Unfortunately, the rest are branded as losers. Tanabe is too foreign, while Tanaka is petite and perverse. Maena and Izawa are truly deviant, and their crazed antics have earned the team some powerful enemies. In spite of their differences, the team needs to work together to retain their practice room and club status.
The Ping-Pong Club has finished airing and it has 26 Episodes. It is also Known as: 行け! 稲中卓球部, Go! Ina Junior High Ping-Pong Club
4. Seitokai Yakuindomo
On his first day of high school at the formerly all-girl's Ousai Private Academy, Takatoshi Tsuda is called out for his untidy uniform by the student council president Shino Amakusa. In apology for delaying Takatoshi for his first class—and stating that the group needs a male point of view to accommodate the arrival of boys at the school—Shino offers him the position of vice president of the student council. Though unwilling, Takatoshi finds himself appointed as the newest member of the student council having yet to even step foot inside the school building.
Takatoshi soon realizes that the other student council members who are more than a little strange: President Shino, who is studious and serious in appearance, but actually a huge pervert, fascinated with the erotic and constantly making lewd jokes; the secretary Aria Shichijou, who may seem like a typical sheltered rich girl, but is just as risque as the president, if not more so; and finally, the treasurer Suzu Hagimura, who may act fairly normal, but has the body of an elementary school student and is extremely self-conscious of it. Surrounded by these colorful characters, the new vice president must now work through a nonstop assault of sexual humor and insanity.
Seitokai Yakuindomo has finished airing and it has 13 Episodes. It is also Known as: 生徒会役員共, SYD
3. Gintama
The Amanto, aliens from outer space, have invaded Earth and taken over feudal Japan. As a result, a prohibition on swords has been established, and the samurai of Japan are treated with disregard as a consequence.
However one man, Gintoki Sakata, still possesses the heart of the samurai, although from his love of sweets and work as a yorozuya, one might not expect it. Accompanying him in his jack-of-all-trades line of work are Shinpachi Shimura, a boy with glasses and a strong heart, Kagura with her umbrella and seemingly bottomless stomach, as well as Sadaharu, their oversized pet dog. Of course, these odd jobs are not always simple, as they frequently have run-ins with the police, ragtag rebels, and assassins, oftentimes leading to humorous but unfortunate consequences.
Who said life as an errand boy was easy?
Gintama has finished airing and it has 201 Episodes. It is also Known as: 銀魂, Gin Tama, Silver Soul, Yorinuki Gintama-san
2. FLCL
Nothing interesting happens in Naota's life since his brother left for America, leaving him with his grandfather and father in their boring little town. On his way home with Mamimi—his brother's ex-girlfriend—a pink-haired, crazy woman riding a Vespa, named Haruko, suddenly slams into him, kisses him, and then bashes him in the head with her guitar before riding off. The next thing he knows, the crazy girl is working as his housekeeper, two robots sprout from his forehead to do battle, and the surviving one starts living with him as well. I think it's fair to say that Naota has parted ways with his old mundane life.FLCL is a kooky coming-of-age story with surprisingly deep undertones as the twelve-year-old Naota develops through the wild antics of Haruko and matures along the way into adulthood.
FLCL has finished airing and it has 6 Episodes. It is also Known as: フリクリ, Fooly Cooly, Furi Kuri
1. Sayonara Zetsubou Sensei
Nozomu Itoshiki is a high school teacher so pessimistic that even the smallest of misfortunes can send him into a pit of raging despair; some of these "catastrophes" even lead to suicide attempts. Sayonara Zetsubou Sensei is a satirical slice-of-life comedy set in the modern day, covering various aspects of Japanese life and culture through Nozomu and his interactions with his students: Kiri Komori, a recluse who refuses to leave the school; Abiru Kobushi, an enigma who frequently arrives to class with severe and mysterious injuries; the hyper-optimistic Kafuuka Fuura, Nozomu's polar opposite; and several other unusual girls, all of whom are just as eccentric as their teacher.
Sayonara has finished airing and it has 12 Episodes. It is also Known as: さよなら絶望先生, Sayonara Zetsubo Sensei, Goodbye Teacher Despair, SZS
