Liese, the last Trinity Seven, appears in the Eternal Library bearing a demon lord seal, making her a demon lord candidate, as well. She tries to entice Arata to join the evil mage side to help save Hijiri, and kisses Arata while he's unsure what to do. Arata has his magic stolen from him, and Liese decides to attack the school.
I'm the one who has to fix 
the building, you know...
Du weißt, dass ich nachher alles
wieder aufbauen muss, oder?
¿Sabes que tendré que arreglar el edificio?
¿Sabes que tendré que arreglar el edificio?
C’est moi qui vais devoir
réparer le bâtiment…
Sono io quello che poi deve riparare, sai?
Você sabe que só eu posso
 consertar a escola, né?