Yoru hails from the depths of Hell, a place known for its ferocious and monstrous inhabitants. He was created for strength and combat, bred to be a formidable force on the battlefield. His temper and resistance to authority made him a challenging asset to control, but his loyalty to those who earned his trust proved invaluable. In Hell, Yoru faced constant violence and brutality, contributing to his cold and ruthless nature. He is not bound by the moral codes that govern many other creatures and has no qualms about harming or even consuming members of his own kind.

Yoru has a short fuse and is prone to bursts of rage, making him difficult to control during tasks that require patience and discipline. Yoru often appears indifferent to the suffering of others, especially strangers. He lacks empathy and can be ruthless when necessary. Despite his difficult personality, Yoru is fiercely loyal to those he forms a bond with. Once he considers someone part of his pack, he will protect and support them without question. Yoru has a strong aversion to authority and commands. He prefers to act on his instincts and emotions, which can lead to conflicts with those trying to control him. His natural aggression and lack of inhibitions make him a formidable combatant. He doesn't hesitate to use violence when needed.