Ranked #5183


Alternative Titles

Synonyms: Akisora, Aki Sora
Japanese: あきそら


Type: OVA
Episodes: 1
Status: Finished Airing
Aired: Dec 18, 2009
Source: Manga
Genres: Ecchi, Romance, Seinen
Duration: 21 min.
Rating: R+ - Mild Nudity
L represents licensing company


Score: 6.411 (scored by 26,556 users)
Ranked: #51832
Popularity: #964
Members: 43,483
Favorites: 127
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.


Aki-Sora revolves around Aki Aoi and Sora Aoi, a pair of close siblings who have shared an intimate bond since childhood. During their coming of age, they each come to realize the true depth of the love they feel for each other and consummate that love in secret. They keep their younger sister, Nami, Sora's twin in the dark about their new relationship. Nami, clueless of what is happening in her household aims to set her brother up with her best friend, Kana Sumiya. Despite these relationships, Nami seems to have feelings for someone near to her too but keeps them secret.

(Source: MU)


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Related Anime

Characters & Voice Actors

Aoi, Aki
Aoi, Aki
Kawaragi, Shiho
Kawaragi, Shiho
Aoi, Nami
Aoi, Nami
Ueda, Kana
Ueda, Kana
Aoi, Sora
Aoi, Sora
Kinoshita, Sayaka
Kinoshita, Sayaka
Sumiya, Kana
Sumiya, Kana
Okajima, Tae
Okajima, Tae


Takakuwa, Hajime
Takakuwa, Hajime
Sound Director
Takahashi, Takeo
Takahashi, Takeo
Itosugi, Masahiro
Itosugi, Masahiro
Original Creator
Kuroda, Kazuya
Kuroda, Kazuya
Chief Animation Director

Opening Theme

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Ending Theme

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Write a review | More reviewsReviews

Mar 10, 2015
IMO, this is the top of the line in borderline hentai & taboo.

This anime doesn't hide its taboo. No sir, its full blown incest. Unlike kiss x sis where they are not blood related and the story shoves that in your face on multiple occasions, Aki-Sora casually mentions. It doesn't try to justify that what they are doing is socially okay. It doesn't give a fuck.

The scenes are amazing. Nothing is shown of course, but its still amazing. Considering the fact that sex isn't just one pose and that's it, it varies from scene to scene, moment to moment. It has more to shown than read more
I found this review Helpful
Jul 12, 2014
A lot of you probably think I'm bashing this solely based on the incest factor. However, this is not the case as there are genuine problems to be adressed. When it comes to story, not much is going on. It's just a young boy perving over his older sister, discovering that the feeling is mutual and them having intercourse. The main problem with the story is that the OVA doesn't know if it wants to be a serious melodrama or soft porn. The prolonged sexual scenes detract from the drama and after a melodramatic love confession it feels somewhat out of place. This creates a read more
I found this review Helpful
Dec 24, 2009
It has been a long time since I saw a good incest story like this one, not since Boku wa Imouto ni Koi wo Suru. This innocent, pure love between Aki and Sora can only be described by the actions they decided to take, the emotions they shared with each other. There’s nothing wrong with their love, nothing at all; you can’t call it dirty, because if that love is pure, honest and sincere, it can’t never be wrong.

If you really know how to appreciate an incest relationship without prejudice, you’re more than welcome to see it.

One more thing, I think there’s a read more
I found this review Helpful
Apr 4, 2015
Since the early 2000s, absurdly nasty "reaction videos" have been very popular on the internet. Whether it is "Shrek is Love, Shrek is Life" or "2 Girls 1 Cup", we ALL have to watch those videos, then force all of our friends to watch them and laugh sadistically as they retch in disgust. Aki no Sora is basically the anime version of this cultural trend...only it lasts for 30 fucking minutes!

Aki no Sora is the tale of a young boy and his desire to fuck his older sister, who has giant boobs. To Americans like me, sleeping with your first cousin is incest read more
I found this review Helpful


Anime: Yosuga no Sora: In Solitude, Where We Are Least Alone.
Both have brother & sister intimate relationships. 
reportRecommended by GuitarHero
Anime: Kiss x Sis (TV)
Both deal with brother and sisters relationships, and both are ecchi 
reportRecommended by zakaichou
Anime: Kiss x Sis
One of the few animes in the Mature Ecchi Incest genre. 
reportRecommended by mflatischler
Anime: Boku wa Imouto ni Koi wo Suru
both contain the same style but unlike the innocent Aki, the protagonists of Boku Wa is more serious in their choices, the brothers live with their parents and friends during the story, what is something that does not contain in Aki-Sora, the fine is and as dramatic as the note is the same, 10 
reportRecommended by Servantes
Anime: Baby Princess 3D Paradise 0 [Love]
Similarity :
+ Both anime about love between siblings
+ Alot fanservice

Different :
+ Sora only have 2 sister
+ Youtarou have 13 step-sisters 
reportRecommended by Hidayat246
Anime: Fault!!
Both anime about love between siblings
Only if you like romance between mio & Shuuichi
reportRecommended by Hidayat246

Recent News

Manga Aki-Sora To Be Discontinued Due to Incestuous Contents

According to the twitter of Itosugi Masahiro, the first and the third volumes of manga Aki-Sora will be discontinued this July. Itosugi said those volumes have been ...read more

OVA of Ecchi Manga Aki-Sora Announced

According to the notice to bookshops, Itosugi Masahiro's manga "Aki-Sora" was announced to get an OVA adaptation. It will be bundled with the manga vo...read more

Recent Forum Discussion

Is this hentai or not?
YamoNoOkami - Feb 28, 2013
9 replies by davinci12 »»
Jul 16, 7:11 AM
Poll: Aki-Sora Episode 1 Discussion ( 1 2 3 )
game8910 - Dec 15, 2009
143 replies by Voltning »»
Jun 13, 7:24 PM