The ultimate demon lord, Astral Trinity, shows up in the form of Arata with a grotesque new appearance. Hijiri appears as well, and the others discover that she is a high-level mage whose goal is to kill Arata and destroy the school.
The genius mage who was the youngest 
to become one of the Trinity Seven.
Die geniale Magierin, die das jüngste
Mitglied der Trinity Seven wurde.
La genio que se convirtió en una 
Trinity Seven a muy temprana edad.
La genio que se convirtió en una 
Trinity Seven a muy temprana edad.
et la plus jeune magicienne
à être devenue une Trinity Seven.
Una grande maga, la più giovane 
a diventare una Trinity Seven.
A maga gênia mais jovem 
a entrar na Trinity Seven.