When Yuka comes home after shopping, she hears her daughter Ami's lovey-dovey voices. Yuka realizes that her boyfriend Kazuya must be visiting. Yuka has no intention of nagging them, and is rather jealous. She peeks at their lovemaking and gets excited. Then, to her surprise, Kazuya sees Yuka comforting herself. There is tension between Yuka and Kazuya, but Kazuya comes to visit while Ami is away.