Rina Takase - Busty Wife With Long Black Hair Wants To Fuck Another Whose Name She Doesn't Know

Rina's in-law is a womanizer. He gets his hands on his junior's wife, and when he is found out, a man comes in and beats him up. Rina gave up her own body to save her in-law. His demands are not satisfied, so he repeatedly asks Rina to perform sexual services for him. Her heart changes, and she gradually becomes obsessed with sex. What will happen to her when her husband returns home from his business trip?