Hayakawa Mina is photographed doing something she shouldn't have caught having sex with a male teacher by her sister Rena, and now she's blackmailed into becoming a plaything for men. The episode centers on Mina's sister Rena the school advisor discovering the situation and getting pulled into the blackmail scheme, leading to her own forced submission with rough sex scenes including deepthroat, paizuri, and creampie to protect her sister