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!
I'm sure we were in the library 
until a moment ago...
Wir waren doch gerade
noch in der Bibliothek …
Estábamos en la biblioteca 
hasta hace poco...
Estábamos en la biblioteca 
hasta hace poco...
Poco fa eravamo nella libreria.
A gente estava na biblioteca
agora há pouco...