Hotaru and Renge are invited to the Koshigaya's house for breakfast. Afterwards, the girls, accompanied by Kazuho, go to the beach, where Komari's height leads her to be mistaken for a lost child. On their way home, the girls stop at a railside udon restaurant (tachigui udon stand), where a prank by Natsumi on Komari backfires due to Renge's innocence. They manage to catch the last train home on time, but accidentally leave Kazuho behind.