After a misunderstanding with her husband, Reika is thrown out of the house without even her wallet and left stranded in a park. A kind man takes pity on her and offers her a place to stay, since he is separated from his own wife and has a spare room. His sincere, gentle behavior and apparent lack of ulterior motives gradually win Reika over. Desperate to repay him, she handles the housework and eventually offers her own body, devoting herself to pleasing him. The once-faithful wife indulges in a secret affair her husband knows nothing about.