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In no Houteishiki

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: Hentai, School
Duration: 30 min. per ep.
Rating: Rx - Hentai


Score: 6.301 (scored by 1,088 users)
1 indicates a weighted score. Please note that 'Not yet aired' titles are excluded.
Ranked: N/A2
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #5319
Members: 2,760
Favorites: 18
Ranked N/APopularity #5319Members 2,760
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Episodes: /2
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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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Related Anime

Characters & Voice Actors

Saeki, Sayoko
Saeki, Sayoko
Minashi, Akemi
Minashi, Akemi


Azuki, Kurenai
Azuki, Kurenai
Original Creator

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More reviewsReviews

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) atleast this hentai has a story otherwise there's no story in most

art(6/10) This anime was released in 2004 but for even that time drawings and animation style is out dated but there's an uncensored version of this

sound (7/10) pretty normal

character (8/10) because the lead women is strong and you will see them talk not just sex

Enjoyment(9/10) The sex scene are really intense

overall(8/10)I enjoyed this because this is an uncommon hentai i mean all read more


Recent News

Recent Forum Discussion

Poll: Immorality Episode 2 Discussion
Pedovear - Sep 8, 2011
3 replies by User-san »»
Mar 21, 2016 5:23 AM
Poll: Immorality Episode 1 Discussion
Pedovear - Sep 6, 2011
2 replies by User-san »»
Mar 19, 2016 5:43 AM