Yumi, a celebrity wife, was chosen for a TV program segment titled "Celebrity Wives Try Being Mothers in Ordinary Motherless Families." When Issa, the only son of the Hama family, comes to visit, he becomes cozy with Yumi and presses his face against her large breasts, wanting to touch them. Feeling sympathy, Yumi gently takes off her clothes and offers her breasts. As they continue to pet each other like mother and son, one day, Yumi and Issa become aroused by each other and end up having sex! Issa's father notices this and pretends to scold Yumi, but forces her to have sex with him. Right in front of Issa's eyes...