Perverted young lady Miho Ashiya has acquired a personal slave● solely for handling her waste. This scat-focused male masochist must obediently eat the vomit she spews, then endure her transferring massive amounts of feces directly from her stomach into his. Eventually growing bored of just vomit, the mistress aggressively stuffs heaping piles of excrement into the slave●'s mouth. Overwhelmed by the sheer volume, he struggles desperately to swallow. When he finally vomits it back up, the cruel mistress scoops it back in with her hands, forcing it into his mouth again and again, coldly commanding, "No, you can't stop—eat it!" Her depraved nature spirals out of control with no end in sight.