Oyasumi Sex

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Alternative Titles

Japanese: おやすみせっくす


Type: OVA
Episodes: 4
Status: Finished Airing
Aired: Oct 26, 2018 to Sep 3, 2021
Producers: Mary Jane
Licensors: None found, add some
Studios: New Generation
Source: Manga
Genre: HentaiHentai
Duration: 15 min. per ep.
Rating: Rx - Hentai


Score: 6.811 (scored by 52245,224 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: #5794
Members: 10,662
Favorites: 77

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There is no bond stronger than the one between siblings. Yui has been the center of her brother's sexual desires ever since they were children. But in recent years, something in their relationship has changed. The divorce of their parents has forced Akira to pay more attention to Yui's well-being, take care of her on a daily basis, and assume the paternal role in their family.

As the two grow older, Akira has taken notice of the physical changes in Yui—she is no longer the precious child he thought he knew. Unable to stop himself, he starts sneaking into her room at night, admiring his sister's body and pleasing himself to her. Akira becomes increasingly frustrated with the distance between them; but when Yui reveals that a friend from school has confessed to her, something snaps inside him.

No longer restricting himself to mere daydreams, he actively has intercourse with his sleeping sister. However, unbeknownst to Akira, Yui remains wide awake during these nightly visits; yet, for some reason, is unwilling to stop him.

[Written by MAL Rewrite]


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Related Anime

Characters & Voice Actors


Kinomoto, Natsumi
Mikami, Mika
Original Creator
Mikazuki, Kougetsu
Original Creator


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Sep 10, 2020
So.... I wont claim this is the greatest ever.... but as far as hentai goes, it has an interesting story, with an odd dynamic between the characters. I mean... if you were going to fantasize about having sex with a make believe fam member, i imagine it would go something like this ha ha ha.

Also... it really feels like they put some effort into fleshing out the story a bit compared to most H series but that could just be me.

Was totally disappointed when I realized it ended on a cliffhanger story wise. It felt like a natural flow into episode 3 yet episode 3 ...
Jun 1, 2021
A rare hentai that's superficially fucked up (perhaps distilled best in the "it's been 2 weeks since I started raping my little sister" screencap meme from ep 2), yet leaves you feeling clean and wholesome when you're done.

Basically, it's just a dude fucking his sleeping sister, but the whole time there are mind games of "does he know that I know that he knows he's fucking me in my sleep", and vice versa. Depending on your tastes, this could create either a gratifying constant romantic tension or just blue balls that their True Feelings™ are never verbalized outright. There is an air of subterfuge and ...
Dec 16, 2019

It's about a brother x sister relationship, the brother feels like he have to act as a father for his little sister, since their parents broke up, but he suddenly finds out that he's falling for her and attack her while she's sleeping, and that's why it's called Oyasumi Sex (Good Night Sex).

Different it's what i can say about this one

You know that incest thing were they make it clear that the sister it's actually a step-sister? Well i don't remember hearing that in this hentai, so well... thats different. Another point is that it shows both perspectives, the brother (who thinks he is doing ...


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Recent Forum Discussion

This Bull shit have lillegal senc
Anti-Pedophile-R - Mar 15
2 replies by badabass »»
Mar 18, 9:06 AM
Poll: Oyasumi Sex Episode 4 Discussion
KiliianSleipnir - Aug 18, 2021
13 replies by oldotakudude »»
Jan 20, 1:53 PM
Poll: Oyasumi Sex Episode 3 Discussion
fourberie - May 22, 2021
10 replies by HANDSAMNGPINAS »»
Oct 21, 2022 9:06 PM
Poll: Oyasumi Sex Episode 2 Discussion
J_B - May 3, 2019
26 replies by HANDSAMNGPINAS »»
Oct 21, 2022 9:05 PM
Oyasumi Sex Episode 1 Discussion
Lianhua - Oct 25, 2018
16 replies by Nejima-kun »»
Oct 29, 2020 12:15 AM