With her husband away on a long-term work assignment, the lonely wife next door lives by herself. Her overly helpful neighbor Yoshioka brings her food and nurses her when she falls ill. Once recovered, she offers him her body as thanks. He gives in to her advances, and his endearingly inexperienced reactions awaken her maternal side. The next day, she plots to seduce him again, luring him in with revealing see-through costumes until their affair burns completely out of control.