Baby Entertainment presents a hardcore BDSM rape story featuring Serizawa Tsumugi. Tsumugi, a beautiful young girl deeply in love with her older brother, moves to Tokyo for college and is separated from him. Vulnerable and alone, she becomes a target for malicious adults who prey on innocent beauties. Under the guise of counseling, she's drawn into cruel and degrading acts. Overwhelmed by extreme torture, she spirals into panic, crying out desperately, "Onii-chan, help me!" This is the sequel to Mothers' hit title "My Little Sister the Lolita Queen," diving deeper into restraint, cruelty, and intense domination.