Evelogia is a young man and also the Demon King in the world he resides in.
As a baby, his parents found him and raised him to later regret their decision due to his destructive powers scaring them and all the other villagers.

He finds it difficult to restrain his power due to it being emitted when he is under emotional distress. This causes him to apologize to his lover Gozu constantly even over minute issues to the point Gozu has to yell at him to stop apologizing.

He is unmoved by what others say about him, yet he is quite sensitive to comments made by specific people or if they're ill-natured towards Gozu. He is a Rational thinker though, of which always puts his beliefs and morals ahead of his own gain. Rather than being a destructive demon king, he acts consciously to help others in need.

He has short cream coloured hair with striking red eyes. He is short in stature and very slim which gets him mistaken as a woman by Mackiddie. He wears a red black and cream Robe alongside a frilly white undershirt, grey shorts and black boots.

(Source: Maou Evelogia ni Mi wo Sasage yo Wiki)