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 never thought mages would have 
to take PE classes, though.
Ich hätte nicht gedacht,
dass Magier Sport machen müssen.
Nunca imaginé que los magos tendrían 
clases de educación física.
Nunca imaginé que los magos tendrían 
clases de Educación Física.
Je ne m’attendais pas à trouver
Comunque, non pensavo che anche i maghi
 dovessero fare educazione fisica.
Eu nunca pensei que os magos 
tinham educação física também.