Yuzuru, who lives with his father, is one day introduced to a 'new mother,' Yumi, by his father, Takashi. Yuzuru, fed up with his father's womanizing ways, plots to drive out Yumi, who presents herself as a mother figure. However... her overwhelming capacity for acceptance unintentionally makes him aware of her as a woman. One time, after being caught in a sudden rainstorm and getting completely soaked, Yumi gently towels off Yuzuru's body. Unconsciously aroused, Yuzuru's panic is calmed when Yumi gently takes his erect penis into her mouth...
