A Child's Summer Time.
Aoki, Kyoko, Rin, Kuro and Mimi travel to Aoki'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 Aoki as he sleeps, but backs off when she believes him to be 'a bit too big' for her. Meanwhile, Kyoko, who got very drunk, mistakes Chika for Aoki and kisses her, though forgets about it the next morning. The next day, the girls help with preparations for Obon, giving Rin fond memories of her mother, so Aoki lets her hug him during the night. They return home the next day, with Rin leaving behind a photo of them to sit next to a picture of Aoki when he was younger.