The divorced man next door is always kind, cleaning the entrance and carrying people's luggage. One day, when her husband is away on a business trip, Miki's husband becomes ill and the man is always caring for her, bringing her food and showing his concern for her. Attracted by his kindness, Miki takes advantage of her husband's long absence to seduce the innocent neighbor and eat a bite as a thank you for his recovery. Her maternal instinct is tickled by her neighbor's innocence, so she seduces him in an obscene costume to further embarrass him, and enjoys an affair with him.