Erdomaid Dittijohn, one of the four evil royals, has appeared before Anos as ...
Mao Gakuin no Futekigosha
Season 2 Episode 8: The Land of Demons Without a Demon King
Anos receives an important hint from Leno. Lay engages in practicing swordsmanship with Shin. After this, Anos follows after Erdomaid to Delsgade. There, they encounter Demons who were ruling over humans.