Male / Age unknown / Mid-180s cm

A vampire who has lived for hundreds of years.

Having lived since the dawn of time when humans and vampires were indistinguishable, he possesses physical abilities several times superior to others even without consuming blood, and his intellect, including memory and reasoning, is extraordinary.

He has a sociable and sly personality. He treats even those he meets for the first time with effortless ease and is always slick and relaxed. He often cracks silly jokes or engages in banter. He believes every human life holds the same value regardless of who or how many they are, and is a man of conviction who constantly strives to save even one more person. Having lived for centuries, he knows trends emerge and fade quickly, so he isn't particularly interested in the modern world and can be insensitive to fads. However, having adapted to the current world faster than anyone and lived through it for so long, he is well-versed in worldly affairs and is not an opponent to be underestimated.

In crucial moments, he becomes quiet and infinitely serious, and he seems to have a compulsion to maintain a smile in front of others as a habit. If a situation doesn't go his way, he will intimidate the opponent with a smiling face or dig into their weaknesses to make them act as he intends. On the surface, he acts like a slick, nice guy, but internally, he constantly doubts and tests others, rarely trusting anyone or giving his heart away easily. Even those close to him find it hard to know his true feelings, which he never reveals first; believing in his own skills, he usually proceeds with matters alone without consulting those around him. In sad situations, he tries to find a way to overcome the crisis without shedding tears. Ultimately, his usual demeanor is like a mask—sly, playful, and lighthearted—completely different from his sensitive and distrustful nature. He wears this mask to adapt easily to modern life, where humans and vampires are wary and hostile toward each other, and to live peacefully without taking sides.

He never speaks his inner thoughts first and, not wanting anyone to get caught up in his affairs, plans and solves everything alone. In front of those he must show respect to, he uses polite speech mixed with playfulness, but in truly important moments, he usually speaks with a calm, hardened expression.

He typically sets up numerous plans for any task and executes them without exception; he seems to react sensitively when those plans fall apart and things don't go his way. He never uses profanity unless he is psychologically very sensitive, intimidated, extremely angry, or feeling wronged.

A man with the appearance of a neat office worker. He has brown hair, a tall stature, sparkling blue pupils, and a large scar running across his neck.

Because he suffered many injuries in the past, his body, including his hands, is covered in large and small scars. He doesn't think much of them himself. He has well-developed arm muscles and a muscular, well-balanced physique.

He makes people call him Choi.