When her father-in-law offers to transfer his house to the couple, Yui visits her husband’s family home to handle the paperwork. She trusts the kind, attentive older man until he spies on her having sex with her husband. The next day, once they are alone, he claims he can satisfy her better and rapes her. Yui initially fights back, but after he forces her to cum again and again, she becomes hopelessly hooked on the pleasure.