ROYD-092 Even my sister has been convulsed.

My sister is the one who can have sex with anyone, even with nearly ten people a day, and she wants to have sex more intensely, and she's the conglomerate of sexuality, but she doesn't feel like she's going in a dangerous direction when I wonder if there's no powerful person who can satisfy her sexuality, and it's someone in school who's so powerful that she can say that she's just one step away from being a sex monster.