Incest Swimsuit Mother

The season is the height of summer. Shizuko was excited when her husband asked her to go to the beach with her family on the day he returned from a business trip. However, there is one problem...that is that her son Masaki is a ``Kanazuchi'' who cannot even touch his face in water. So Shizuko changes into her new swimsuit and decides to do special training with Masaki, but... However, he was unable to overcome his fear of water. So Shizuko consults Masaki's childhood friend Kunihiko from the swimming club, but...