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.
Yeah, but it doesn't work with some magic 
because of something about processes.
Ja, aber manchmal funktioniert das
wegen so eines Prozesses nicht.
Claro, pero debo cumplir eso de los procesos
Claro, pero debo cumplir eso de los procesos
Oui,
Già, ma non funziona sempre per via
 di qualche strano processo.
É, mas tem alguma coisa 
relacionada ao processo