Ryota is left alone on his parents' trip. Ryota was completely sullen, but the situation changed completely when he met his mother's best friend, Yuki, who took care of him instead of his mother. Everyone can't stop beating their hearts at the beauty that turns around. Ryota, who fell in love in an instant, steals underwear with a runaway emotion. Instead of getting angry at Ryota, Yuki gently comforts him and asks, "Are you satisfied with just your underwear?"