Evelogia is the Demon King of his world, though calling him "destructive" would miss the point entirely. He's actually a rational guy who puts his principles first, even when it'd be easier not to. He tends to help people in need rather than, you know, rule them with an iron fist like you'd expect from the title.
The thing is, his power has a mind of its own. Whenever he gets emotionally worked up—stressed, upset, whatever—his demonic energy just starts leaking out. This makes him apologize to his boyfriend Gozu constantly over the smallest stuff, to the point where Gozu has literally yelled at him to cut it out. He knows it's annoying but can't always help it.
He's weirdly unbothered by what most people think of him, but he's actually pretty sensitive if someone makes a dig at Gozu or says something deliberately mean. That'll get under his skin. His parents found him as a baby and took him in, though they eventually regretted it—his power scared them and honestly freaked out the whole village.
Appearance-wise, he's got short cream-colored hair and striking red eyes. He's on the shorter side and very thin, which has led to people like Mackiddie mistaking him for a woman. He dresses in a red, black, and cream robe over a frilly white undershirt, with grey shorts and black boots.
Content compiled by AnimeList.moe from publicly available sources.