In no Houteishiki


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Alternative Titles

English: Immorality
Synonyms: Equation of the Immoral
Japanese: 淫の方程式


Type: OVA
Episodes: 2
Status: Finished Airing
Aired: Mar 25, 2004 to Nov 25, 2004
Licensors: JapanAnime
Studios: Piko Studio
Source: Manga
Genres: HentaiHentai, SchoolSchool
Duration: 30 min. per ep.
Rating: Rx - Hentai


Score: 6.281 (scored by 17311,731 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: #7040
Members: 4,636
Favorites: 24

External Links

Ranked N/APopularity #7040Members 4,636
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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)


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Characters & Voice Actors


Azuki, Kurenai
Original Creator


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Apr 28, 2017
bhivania (All reviews)
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 read more

Recent News

Recent Forum Discussion

Poll: Immorality Episode 2 Discussion
Pedovear - Sep 8, 2011
6 replies by thepath »»
Oct 23, 2020 4:13 AM
Poll: Immorality Episode 1 Discussion
Pedovear - Sep 6, 2011
5 replies by aly619 »»
Feb 4, 2019 1:26 PM