hearing that her daughter and son-in-law's relationship is deteriorating, Shuri volunteered to be the mediator. she wants her daughter to be happy. if possible, she wants to see the face of her first grandchild. it was an action based on those feelings. but, shuri's unconsciously radiating charm and her too erotic body stir up the relationship between her daughter and son-in-law even more. the son-in-law who plans to have a relationship with Shuri. shuri, who can't firmly refuse because of her inherent perverted nature, even though she thinks of her daughter. the daughter who doesn't notice the uneasy atmosphere. each person's intentions intersect, and the night deepens.