Summer vacation! Seiji, Guri, Akane and Yuzu have invited Akua to go with them to the beach. Akane tries to get Akua to go swimming with her in attempt to get closer to Seiji's little sister, but Akua gives her the cold shoulder. Pouting at her brother and his harem Akua goes to swim by herself but a dark shadow looms beneath her. Meanwhile, summer also means tests of courage! Guri suddenly invites Seiji, Akane, and Yuzu to the school after dark for a test of courage but her real motives are to pair another young couple who have asked for her help. Seiji thinks something isn't quite right about the pair though...
I'm sure Akane-san and Guri are fine, 
so just relax until we get to the roof.
Akane und Guri
sind sicher wohlauf.
Seguro que Akane-san y Guri
están bien, relájate y vamos a subir.
Seguro que Akane-san y Guri
están bien, relájate y vamos a subir.
Akane et Guri vont sûrement bien.
Repose-toi jusqu’à ce qu’on les trouve.
Akane-san e Guri staranno di sicuro bene,
quindi rilassati finché non arriviamo sul tetto.
Tenho certeza que 
a Akane-san e a Guri estão bem.
Я уверен, что у Гури и Аканэ всё путём,
так что не переживай.