Mayu, a wife who got to know her husband's friend Kayama from an unexpected point of view. He is a qi and hobbyist, and she opens her heart to many things. One day, however, Kayama forced him to refusal and had a physical relationship with him. I feel guilt for my mistake that was thrown into his lonely expression. Her body, which has been in contact with her husband for a long time, secretly hopes that Kayama will commit crimes at the bottom of her heart. And I was asked by my husband to come to his house.