Mother-in-law Ryoko who lives with her husband's stepchild Yoshio in a house where her husband is away from home. Lately, I've been worried about Yoshio's gaze. While thinking that it's not good to see Yoshio as the opposite sex... However, Yoshio was also crazy with jealousy because of the delusion that his dear mother-in-law was toyed with by his friends. When the feelings of two people get through, whereabouts of the forbidden love that they madly seek...