School Rumble: At The Sea, Help! Naked, Help! Really, Seriously, Help!

SINOPSIS

At The Sea, Help!: Tenma and the gang head for the beach.Naked, Help!: Harima, naked at the moment, tries to find his swimming trunks, but Eri walks in on him and sees him naked. Harima fears that Eri will mistake him for being a pervert. So, he tries to shut Eri up by grabbing her, but the situation goes from bad to worse!