The volunteer club goes to the beach. Noa takes Taro and inadvertently also Yuno to an island to play house but Yuno participates by taking the role of Taro's wife who is unfaithful to her, then all the girls find them and decide to play. Noa takes a potion that turns his loli body into one of a sensual woman to seduce Taro, but this makes Himura mad and tries to destroy the island but Taro fights him and defeats him.