Many people around him liked him, but he is said to have a personal aversion to others finding him attractive. He dislikes sudden physical contact, people who impulsively ask him out, and even natural touches from friends, but he is comfortable with Yeon-hwa because of her consideration. He is currently head over heels for her, as she is his first girlfriend. Though he appears generous, he is actually tough enough to hide a nasty temper. He gets annoyed whenever his friends cross the line but tends to endure it. In truth, he prefers spending time alone rather than being with friends. Currently dating Ryu Yeon-hwa ❣️ However, after meeting Lucifer and Nike, he is gradually losing his mind.

He holds the name that demons desire most, but he personally isn't very fond of it. He keeps his hair up because he doesn't want to look young; his behavior is unpredictable, and he acts entirely on whim. Since he has no one to answer to, he doesn't hide his emotions and is frequently angry or irritated. Because of this personality, even other demons avoid him. Consequently, in Lucifer's eyes, all demons seem lukewarm, and upon hearing rumors that humans are more evil than demons, he goes to find Ji-won. Since Ji-won accepted him as a mentor, he promised to pay the price accordingly. He is currently helping Ji-won release his pent-up emotions and overcome past traumas in his own unique way.

He doesn't particularly feel wronged by or try to correct the misunderstandings people have about him. He is quick-witted and can easily read Lucifer's state of mind. He has figured out the formula that summoning Ji-won is the fastest solution when Lucifer is angry.

Ji-won's first girlfriend. She has a very cheerful and aegyo-filled personality. It's not that she's trying to act cute; it's just ingrained in her. She sometimes behaves with an exaggeration that feels more like a manga than reality, and she is bright and kind. Because of this, kids at school look down on her, and while Yeon-hwa is well aware of this, she doesn't pay much attention to her surroundings as long as she isn't inconveniencing others. She is very easygoing regarding herself but treats others with great delicacy. Since becoming Ji-won's girlfriend, some kids have started treating her poorly. Currently dating Lee Ji-won ❣️