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!
Arin-chan, don't worry.
Arin-chan, keine Sorge.
Arin-chan, no tienes de qué preocuparte.
Arin-chan, no tienes de qué preocuparte.
Ne t’inquiète pas,
grand frère !
Arin-chan, non preoccuparti.
Arin-chan, não se preocupe.