Ryota was left alone on his parents' trip. Ryota was completely moody but the situation changed completely when he met his mother's best friend, Yuki, who took care of him instead of his mother. Everyone couldn't help but feel heart-stopped by the surrounding beauty. Ryota, who falls in love instantly, steals underwear with runaway feelings. Instead of being angry with Ryota, Yuki gently comforted him and asked, "Are you satisfied with just your underwear?"