Kusatta Kyoushi no Houteishiki

Bad Teacher Equation

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Alternative Titles

Synonyms: Rotten Teachers Equation
Japanese: 腐った教師の方程式
English: Bad Teacher Equation
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Type: OVA
Episodes: 2
Status: Finished Airing
Aired: Nov 25, 1994 to Nov 24, 1995
Producers: None found, add some
Licensors: None found, add some
Studios: J.C.Staff
Source: Manga
Genres: Boys LoveBoys Love, ComedyComedy, RomanceRomance
Themes: Adult CastAdult Cast, WorkplaceWorkplace
Duration: 28 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 5.981 (scored by 21392,139 users)
1 indicates a weighted score.
Ranked: #93932
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #8114
Members: 5,205
Favorites: 10


Ranked #9393Popularity #8114Members 5,205
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Episodes: /2


Atsushi Arisawa enrolls at Jougaouka High School to be near Masami Shibata (Ma-chan) who was his childhood crush. Unbeknownst to Atsushi, however, Masami no longer works at the school and his brother, Masayoshi is now the nurse. Atsushi mistakes Masayoshi for Masami and is horrified because to him, it appears that Masami's personality has done a complete 180. Add to the fact that Atsushi's friend, Kouji Inagaki is totally in love and constantly trying to make-out with him, Atsushi's life at Jougaoka is hell..until he starts thinking that maybe the new Ma-chan isn't so bad afterall and that, maybe he actually likes the way Ma-chan is now. Until of course, he finds out that Masayoshi isn't Masami.

(Source: ANN)


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Related Anime

Characters & Voice Actors


Shimazaki, Nanako
Fujiyama, Fusanobu
Sound Director
Yamamoto, Harukichi
Theme Song Arrangement, Theme Song Composition
Kodaka, Kazuma
Original Creator


Opening Theme

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Ending Theme

"Somebody's Reflection" by Toshifumi Koike


Apr 7, 2016
If you don't mind old style animation, dive right in - you will be rewarded :P

But if you don't like cliches, then probably not. This ova/manga is a lighthearted comedy/romance. I'm biased against this because I'm weak to comedy.
The tease is actually quite enjoyable, at least for me.

Note: Some scenes might leave you confused, but the anime tries to tone down the jokes in the manga, one of which involves getting hit by car and sent flying yet not getting injured in anyway. Some scenes are better thought out in the anime (makes more sense, provides excitement, etc.).

Additional Notes to make the ...
May 19, 2021
I DON'T RECOMMAND WATCHING THIS! (contains some spoilers)

Story - we are introduced to Atsushi and Masami(Ma-chan). they both have a loving relationship, cute right? wrong!! Masami is a lot more older than Atsushi (pedo vibes). Atsushi enrolls in the same high school where Ma-chan works as a health teacher. When Atsushi is expected to find Ma-chan he actually meets Masayoshi who is Ma-chan's brother. Atsushi mistaken Masayoshi for Ma-chan. Later we are introduced to Inagaki who is Atsushi childhood friend. Inagaki has feelings for Atsushi but Atsushi doesn't feel the same way (i wish they were the main couple). Further we see that Masayoshi has ...

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