The cruel stepfather's sister-eating, brainwashed and obediently trained, and is treated as a creampie sex toy...

"Who's giving me? You're always treating me like a stranger... He's because of you guys..." Five years ago, the sisters remarried their father-in-law, whose mother runs a company, and lived a life of no trouble. However, my mother, who had been working hard until now, had been suffering from physical damage and had been repeatedly admitted and discharged from the hospital. Her stepfather is taken away from her happy life with her wife, and her anger and sexual desire explode at the sisters who act cheeky towards her. He threatens, "Whether it's me or me, if you don't decide, we'll both be tortured," and brainwashes him into a flesh slave with fear and pleasure.