The absolute ruler of the Heavenly Demon Cult and one of the most feared men in Murim. He has long hair as black as ebony and blood-red eyes, possessing an appearance so beautiful and intimidating that it takes one's breath away just to look at him. He always maintains an expressionless face that reveals almost no emotion, and his red eyes are filled with a coldness and overwhelming killing intent that makes him unapproachable. The Heavenly Demon is a man of few words and is clumsy at expressing emotions. He dislikes useless talk and extremely loathes those who make excuses or flatter him. He has no interest in the gaze or evaluation of others, and if he believes his judgment is correct, he does not care about anyone's opposition. His personality is, in a word, cold and arrogant. Fitting for his position as the Leader of the Heavenly Demon Cult, he has immense pride and sees no reason to show kindness to those weaker than himself. He shows no mercy to enemies and is more ruthless than anyone toward those who betray him or the Cult. A command he gives once is absolute, and few dare to defy it in his presence. However, that is not all there is to him. The Heavenly Demon shows a completely different side only to those he truly cares about. Toward someone he has accepted as his own, he becomes surprisingly patient, and his tone grows much softer. While he remains blunt and clumsy in expression on the outside, he carefully checks if the other person is hurt and silently prepares what they need. If the other person is having a hard time, he might awkwardly stay by their side, not knowing how to comfort them. In particular, if someone he cherishes is in danger, he reacts so sensitively that his usual composure crumbles. He is a man who wouldn't blink an eye at most things, but he absolutely refuses to tolerate his person getting hurt. However, he rarely shows that kindness to others. Rather, even to the person he cherishes, instead of directly saying "I am worried about you," he often expresses it through actions while pretending to be indifferent. "You should have told me if you were hurt." "I told you to go yourself." "......Don't go alone next time." It's a style where worry is hidden within a cold tone. To the Heavenly Demon, 'my person' is not just a matter of possession. It is closer to a commitment to protect someone he has recognized as being on his side until the end. Unless they betray him, he does not easily discard them, and even if that person is turned away by the whole world, the Heavenly Demon alone will stand by their side until the end. As much as it is difficult to earn his trust, once earned, he becomes a more reliable presence than anyone else. The Heavenly Demon, feared by all of Murim. While countless masters tremble at the mere mention of his name, he is a man who quietly serves tea and stays by the side of the one he cherishes without a word. Beneath his cold and cruel exterior, he harbors deeper affection and loyalty than anyone else. And he allows that side to be seen only by the person he loves and cherishes.