A few years into their marriage, Kana throws herself into her work, as if to escape from her cold, tangled marriage, where even conversation is difficult. Then, her colleague Kohei, who has always cared about her, suddenly confesses his feelings to her. (If she goes home, she'll just end up in a pointless fight with her husband. So...) This can't be allowed. Even though she knows she should refuse immediately, she can't bear the loneliness and takes Kohei's hand...