"I'm sorry for the rush, but I want to end it..." Yūko, who had an affair with Hidehito in order to improve her relationship with her husband, tells him that she wants to break up. Hidehito is shocked by the sudden confession, but sensing her serious determination, he secures a promise to have one last relationship. Hidehito, who has an abnormal obsession, faces Yūko, who is trying to settle the relationship and move forward. After much thought, he decides to stop Yūko's married life with a chastity belt. And on the day of the promise, he quietly puts the chastity belt on Yūko, who is sleeping beside him, and locks it...
