Ryota was left alone on his parents' trip. Ryota was completely depressed but the situation changed completely when he met his mother's best friend, Yuki, who took care of him instead of his mother. Everyone was stunned by the beauty surrounding him. Ryota, who fell in love at first sight, stole his underwear with the feeling of running away. Instead of getting angry at Ryota, Yuki gently comforted him and asked, "Are you satisfied with just your underwear?"