The girls are running in their exercise outfits, with the boobs swaying to and fro. Arata's heart races. Everyone's having great time, and then a ghost appears in the library. Arata and the gang go to check it out, and are forcefully transported to the "Eternal Library". There they find the lost Trinity Seven!
You really say just what 
you're thinking, don't you?
Du nimmst echt kein
Blatt vor den Mund, was?
Siempre dices lo que piensas, ¿eh?
Siempre dices lo que piensas, ¿eh?
Au moins, tu es honnête !
Onii-san, dici davvero tutto quello
 che ti passa per la testa, eh?
Você fala mesmo o que está pensando, né?