The Misfit of Demon King Academy Episode 13

Let the World Be Filled With Love (世界が愛に満ちるように, Sekai ga Ai ni Michiru yō ni) is the 13th episode of Maō Gakuin no Futekigōsha anime series.

Synopsis
Everything started 2,000 years ago. The situation suddenly shifts when the true identity of the man in the black mask, Avos Dilhevia, is revealed. Even after 2,000 years, the wounds caused by the endless conflict between demons and humans have not been healed. The Demon King of Tyranny, Anos Voldigoad, makes a choice...

Characters
In order of appearance:

Anime Differences

 * In the web novel, Anos only used  to destroy Lay's six sources. But in the anime, Anos used many spells to destroy them, making it look as if mere spells could destroy the source while inside a person.
 * Misa's  was given emphasis in the web novel. Because it was the same spell Liniyon used 2,000 years ago, Jerga thought that even the spirits sided with the demons.
 * The part where Anos ask Lay about the other Avos Dilhevia mask, which Lay has no knowledge of, is omitted.

Trivia

 * It is a mystery how Jerga came to know about the existence of Venuzdonoa, the Reason Destroying Sword, since those who saw it died without even leaving their sources.
 * Anos used  to replenish his magic power after summoning his castle  in order to summon Venuzdonoa.