Sigma
Sigma is a demon hunter Captain who commands a group of hunters on the mission to capture Malka from his misdeeds of enchanting the nearby kingdom.
Sigma holds a grudge against Malka for the death of his sister, as she lived in the neighboring city that Malka enchanted. Upon Malka's capture, the residents of the kingdom fought for Malka's freedom against the group of hunters, and many of them killed themselves, unable to bear life without their beloved Malka's presence. Sigma's sister was one of them.
In his anger, Sigma tortures Malka, trying to force the demon to admit to his wrongdoings, to the death of the kingdom's residents, but the demon refuses, believing he had nothing to do with any of their deaths. He'd never lifted a finger to kill anyone, after all. The blood was not on his hands. This enrages Sigma further, and thus periodically throughout the years of Malka's captivity, continues to torture the demon, until the kingdom ultimately falls to a horde attack and all the prisoners escape.
Malka is bent on ​revenge and hunts him down, promptly returning the favor with his own method of torture: enchanting all those Sigma escapes the attack with, except for Sigma himself, who is too wounded to fight back and must watch as the ones he cares about, mindlessly adores the demon he hates the most. He's taken prisoner by the hunter survivors under Malka's influence, and lives with Malka for months onward.