Save Me at the Beach! Save Me, I'm Naked! Just Save Me For Real!.As the group heads to the beach, they stay at a seaside resort with two rooms separated by a fusuma, which sparks Imadori's intent to spy on the girls changing into their bikinis, though Hanai stops him. At the beach, Eri notices she forgot her sunscreen in her room, so she returns to retrieve it. Back at the beach, Hanai saves Mikoto from drowning after she went to a deeper part of the sea so she could learn to swim by herself, and thus Tenma proposes him to teach her to swim. The lessons start with varying methods and degrees of success: Eri refuses to let Harima even touch her, let alone teach her. Akira makes Hanai swim alone (with the pretense of watch and learn) while she sits at the sand reading, until he tires out. Nara with Tenma is the only one successful (though she loses her swimsuit and he retrieves Harima's instead at one point). Finally, Imadori leads Mikoto into a cave far off the shore, just so he could be alone with her in there. Though Mikoto tries to think of a way out, all Imadori can think of is how to get into her bikini. And, even though she is convinced their friends wouldn't leave them stranded, they have not noticed their absence at all.