In no Houteishiki


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Alternative Titles

Synonyms: Equation of the Immoral
Japanese: 淫の方程式
English: Immorality
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Type: OVA
Episodes: 2
Status: Finished Airing
Aired: Mar 25, 2004 to Nov 25, 2004
Licensors: JapanAnime
Studios: Piko Studio
Source: Manga
Genre: HentaiHentai
Theme: SchoolSchool
Duration: 28 min. per ep.
Rating: Rx - Hentai


Score: 6.271 (scored by 21912,191 users)
1 indicates a weighted score.
Ranked: N/A2
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #8083
Members: 5,732
Favorites: 29


Ranked N/APopularity #8083Members 5,732
Add to My List
Episodes: /2


Sayako is a new nurse at this certain school. She is what you call a diva: nice pretty face, slender body with the perfect curves and last but not least, very well-formed bust. But there is more to her than meets the eye.

(Source: AniDB)

Characters & Voice Actors


Oda, Kansaburou
Episode Director
Azuki, Kurenai
Original Creator


Opening Theme

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Ending Theme

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Apr 28, 2017
This anime is for you if like shemale , big boobs and teachers
and is not for you if you are looking for morden and beautiful looking art(drawing)

Story(8/10) Don't wanna spoil the story but from hentai standards it has a story otherwise there's no story in most of the hentai now days

art(6/10) This anime was released in 2004 but some reason drawings and animation style is out dated but there's an uncensored version of this so that's a plus side I mean what good the art work will do if every useful thing is pixelated.

sound (7/10) Sound is pretty normal and i don't have ...


Recent News

Recent Forum Discussion

Poll: Immorality Episode 2 Discussion
Pedovear - Sep 8, 2011
9 repliesby magatetus »»
Jul 5, 2023 6:12 AM
Poll: Immorality Episode 1 Discussion
Pedovear - Sep 6, 2011
6 repliesby MiniMoose-kun »»
May 27, 2023 1:38 PM