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!
so it's not surprising you don't know.
also ist es klar,
dass du nichts davon weißt.
era de esperarse que no lo sepas.
así que es normal que no lo sepas.
per cui è ovvio che tu non lo sappia.
então não é nenhuma surpresa
 você não saber disso.