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.
When fighting a mage stronger than yourself,
Wenn man einen stärkeren
Magier bekämpft,
Cuando enfrentes a un 
mago más fuerte que tú,
cuando te enfrentes a un 
mago más fuerte que tú,
Il faut toujours bien préparer
son grimoire lorsqu’on s’attaque
Quando combatti con qualcuno più forte di te,
Quando lutar com um mago
 mais forte que você,