My neighbor's wife, Ayumi-san, who has been secretly longing for a long time, and I'm alone in my room. The man did his best to pretend to be calm in the unexpected dream-like situation. Mr. Ayumi says that he has no place to go because he was kicked out by his furious husband after cheating. Without hesitation, the man suggests that he hide himself. The owner is right there. But I'll never get another chance like this. As if she had read the feelings of the man who was thrilled with excitement and immorality, Ayumi gently brought her body into close contact with him. A short-lived life together began.