Since our parents divorced, I spent more time with my younger sister. For me, Yui is still like a little baby. I have to be able to replace the position as a father and take care of Yui. However, over time, I feel insane. Every night I do something pervert to my own sister when she sleeps. I understand we are siblings, but I can't help it.... (Source: Translated and Edited from Nekopoi)
Watch Oyasumi Sex episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.
Incest · Flat Chest · Heterosexual · Nakadashi · Nudity · Age Gap · Female Protagonist · Male Protagonist · Masturbation · Facial · Cunnilingus