Kajikawa and Ichihara have been in a sex friend relationship for many years. One day, Kajikawa brings up the idea of ​​ending their sex friend relationship, citing her desire to find a husband. However, the marriage search is just a pretext. Kajikawa has feelings for Ichihara, but to Ichihara, she is just one of many sex friends... She said it to cut off her feelings for Ichihara, which will never come true. Just when she thought she could finally get away from Ichihara, Ichihara contacts her to pick up some luggage he left at Kajikawa's house. At first, Kajikawa refuses, but Ichihara is forceful and ends up letting him into her house. Then Ichihara suddenly hugs her. "I like you, Kajikawa." Although Kajikawa is shaken by the sudden confession, she thinks it's a lie to keep his convenient sex friend, so she pushes Ichihara away. The words Ichihara once told him, "I like you because you don't say you like me," became a curse and she was unable to trust Ichihara. Meanwhile, frustrated with Kajikawa's stubborn refusal to believe, Ichihara resorts to "strong measures."