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 going to be serious about this, Headmaster.
Ich mache jetzt Ernst, Direktor.
Voy a pelear en serio, director.
Voy a pelear en serio, director.
Je ne retiendrai pas mes coups,
Stavolta farò sul serio, signor Rettore.
Vou levar isso a sério, Diretor.