"Eriko" is an ordinary housewife who lives in peace with her husband and daughter and her husband, Tomoaki. Calm everyday is Eriko's treasure. On one such day, Eriko is affectionate with a young man of the part ahead and is witnessed by Hiroaki. Hiroaki, who was inspired by the appearance of Eriko, who begged for wanting to be secret, took a shot of Eriko's huge chest. They were drowning in forbidden pleasure.