Ranked N/A

Aneki no Kounai Kaikinbi

Alternative Titles

Japanese: アネキの口内解禁日


Type: OVA
Episodes: 1
Status: Finished Airing
Aired: Feb 17, 2012
Producers: ChiChinoya, SPEED
Source: Unknown
Genres: Hentai
Duration: 20 min.
Rating: Rx - Hentai
L represents licensing company


Score: 5.581 (scored by 1,102 users)
Ranked: N/A2
Popularity: #4353
Members: 2,578
Favorites: 15
1 indicates a weighted score. Please note that 'Not yet aired' titles are excluded.
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.


When 23-year-old Hirose Anna finds out that her little brother masturbates with her dirty underwear, she decides to take things a step further by allowing him to see her do naughty things as well. Each time the situations escalate until she comes out and tells him that as his big sister she will take responsibility for his sexual curiosity. She allows him to do anything with her except for proper sex; yet as his requests get dirtier each time, she remains determined to take responsibility and keep things going no matter what.

(Source: ANN, modified at BakaBT)


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Characters & Voice Actors

Hirose, Anna
Hirose, Anna


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Opening Theme

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Ending Theme

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Write a review | More reviewsReviews

Nov 3, 2014
This, Ladies and Gentelmen...was the most horrible thing I have seen, in the last 5 years of my life).

So let's start with the story, it all begins when this girl called Hannah or Anna (whichever) sees her younger brother masterbating with her underwear (shit happens), so then, she decided that she would take care of her brothers sexuality (probably thinking it would make him healthy or something). But she has terms :"her brother can do anything he wants with her as long as it's not actual sex" meaning, only oral, kisses, handjobs, ect..... He also loves to take sexy pics or videos of her when read more
I found this review Helpful
Oct 15, 2015
This is probably the worst thing I have seen yet. The plot, even for a hentai, is non-existent with no explanation as to why the characters are even interested in each-other. The garbage plot is made worse by the art quality, which, for something that came out in 2012, is a poor effort at best. Animation was choppy, characters were half-drawn, and the setting was bland and remained the same throughout. The voice acting was equally abysmal with no redeeming qualities. The work is, in fact, improved without the sound assets.

All of that being said, I thought it was going to be a solid read more
I found this review Helpful
Oct 9, 2013
This single episode hentai is just so bland. It has absolutely no background music, the only person who talks or makes any noise at all is the one female character, there is no actual sex since it just involves the one girl rubbing several guys' dicks with her mouth, breasts, and hands, and it all pretty much happens in the same blandly decorated beige room.

It all starts when the girl sees her younger brother masturbating while holding some of her underwear. She tells him that she likes him as well and from there her brother just keeps having her do more and more sexual things read more
I found this review Helpful
Sep 14, 2015
The story of a sister who just feels obligated to please her little brother. It's cute enough. He makes her dress suggestively and give his pals bj's. That's the story. It's porn, it doesn't have to be a work of genius. 7

I liked the art. It was different from the generic moe art we get today. The males looked as they supposed to, bland and uninteresting as they are not the focus. The heroine is cute enough to give you a stiffy, with her generic yet effective design. The animation wasn't the smoothest but I don't think that was the goal. The art does the read more
I found this review Helpful


Anime: Fella Pure: Mitarashi-san Chi no Jijou The Animation
In both hentai the main theme is fellatio. The two feature siblings’ incest scenario.

Aneki no Kounai Kaikinbi - The broher in this one is an A$$.
Fella Pure - Brother treat the sister with affection plus 2 scenes of vaginal penetration.

reportRecommended by Roy_Focker
Anime: Betsu ni Anta no Tame ni Ookiku Nattan Janain Dakara ne!!
Both hentai are first-person perspective.  
reportRecommended by hackrabbits
Anime: Akina to Onsen de H Shiyo!
Both hentai are first-person perspective.  
reportRecommended by hackrabbits
Anime: Issho ni H Shiyo
Both hentai are first-person perspective. 
reportRecommended by hackrabbits
Anime: Lovely Day: Boku to Kanojo no Nana Nichikan
Guy incest with also his cousin,straight and great art. 
reportRecommended by RosyXkid

Recent News

Recent Forum Discussion

Poll: Aneki no Kounai Kaikinbi Episode 1 Discussion
Osianilist - Aug 18, 2012
6 replies by Kagami_Hiiragi »»
Sep 13, 2:53 AM
Episode 2
yhunata - Feb 14, 2013
1 replies by Blaz »»
Sep 9, 2013 8:56 AM