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 can't believe Akane is talking with 
a penguin as if that were normal!
Akane spricht mit dem Pinguin,
als wäre sie mit ihm auf einer Wellenlänge.
¡No puedo creer que Akane
hable con eso como si fuera normal!
¡No puedo creer que Akane
hable con eso como si fuera normal!
Non riesco a credere che Akane stia parlando
come se niente fosse con un pinguino...
Não acredito que a Akane está falando com um pinguim, como se isso fosse normal!
Поверить не могу, что Аканэ говорит
с пингвином, словно это нормально!