The life of Sayama - a woman who loves to imagine and read novels - has completely turned a new page since she mistakenly walked into her neighbor's fateful room. It would just be a normal mistake of entering the wrong room if a special situation occurred at the wrong time: he was masturbating. This is the reason why she became a completely different person, but she cannot blame anyone because she was the one who decided and chose this path for herself. The orgasm started after a long period of time when her husband had her private area tied with silk because of physiological weakness, right at the same time the neighbor was masturbating and at the same time she was holding a novel about physiology in her hand. learning that curiosity, excitement, and sexual desire are inevitable. Unable to control herself, she raped her neighbor based on his willingness. That was also the basis for the two people's later secret acts.
