Daisuke, Kyoko, Rin, Kuro and Mimi travel to Daisuke's hometown where they meet his family, including his younger sister, Chika. As the girls go to the beach, Rin recalls the times she went to the beach with Aki and Reiji. Later that night, Rin tries to make a move on Daisuke as he sleeps, but backs off when she believes him to be 'a bit too big' for her. Meanwhile, Kyoko, who got very drunk, mist...