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!
This magic feels like what we 
experienced in that library.
… diese Magie fühlt sich wie
die aus dieser Bibliothek an.
Esta magia es muy similar 
a la de esa biblioteca.
Esta magia es muy similar 
a la de esa biblioteca.
c’est que cette énergie
me rappelle celle de la bibliothèque.
questa magia è la stessa che abbiamo percepito
in quella libreria.
Essa magia parece que veio da biblioteca.