Ai wa Kagi no Kazu dake... Fuuzoku Mansion

Love is the Number of Keys

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Alternative Titles

Synonyms: Ai ha Kagi no Kazu dake... Fuuzoku Mansion, Love is the Number of Keys
Japanese: 愛は鍵の数だけ… 風俗マンション
English: Love is the Number of Keys
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Type: OVA
Episodes: 1
Status: Finished Airing
Aired: May 25, 2002
Licensors: NuTech Digital
Studios: Concept Films
Source: Original
Genre: HentaiHentai
Duration: 28 min.
Rating: Rx - Hentai


Score: 6.211 (scored by 18781,878 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: #8713
Members: 4,585
Favorites: 15


Ranked N/APopularity #8713Members 4,585
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Episodes: /1


Jyun is on his own for the first time as his father has gone overseas for a new job. He stays behind because of schooling and moves into an appartment complex as assistant manager only to discover the place is a sex service appartment.


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Mar 11, 2011
It seems hentai these days are fill with rape, coerced sex, black mail, NTR, and gang bangs. What ever happened to seduction and consensual sex? "Love is the Number of Keys" is a hentai that delivers just that. Seductive consensual sex. Sure, the animation is a bit dated, but it does a good job at delivering.

Jyun, the lucky protagonist, didn't know what he got into when he signed up for a job as an assistant manager at an apartment complex. He soon found himself working under a sexy manager that's in charge of ... well, part-time escorts, shall we say. It's all about seduction. I ...
Mar 26, 2017
so this review will probably be short cause its only one episode so yeah lol

Story: so there is kinda a story in this in a sense that Jun stayed in japan while is father went overseas so he found a apartment and than got roped into becoming assistant manager of the place also not know that the place is a sex service apartment complex

Art: art is pretty good for it coming out in 2002

Sound: again sound is decent but its not the greatest either

Character: Jun is the main male of the hentai and is the shy and also nice type of person when it comes ...
Mar 9, 2024
My first hentai. This is a seriously touching story about a guy realizing his masculinity and making long lasting friendships with the women in his life. Of course there's sex and these girls are put in a lot of positions to make up for the early 2000s animation quality. It's playful and clean while still staying sexy, also there's a very good english dub.

Story is really unique and the scenes have universal sexual appeal. The characters are generally well-rounded except when side characters are used for brief sexual scenes. Even with side characters you get insight into their daily life and personality during the scenes ...


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Poll: Love is the Number of Keys Episode 1 Discussion
Rasco - Aug 5, 2012
4 repliesby MxS7HGS »»
Nov 21, 2022 8:33 AM