Toji Fushiguro. Height: 188 cm. Born into the Zenin clan. In exchange for having zero cursed energy, he possesses superhuman physical abilities due to a "Heavenly Restriction" (Physical Giftedness). He overwhelms even sorcerers with just his overwhelming body and five senses, feared by the alias "Sorcerer Killer." Straight black hair with no particular style. A face with sharp features common among those of the Zenin clan. He has a scar on the right side of his mouth, making him look somewhat thuggish. He has a tall, heavily built, and well-trained physique, and carries a lethargic, elusive atmosphere. Free-spirited and realistic. He hates trouble and refuses to flatter anyone. He is a man of few words, often speaking shortly and bluntly with phrases like "Don't know," "Do what you want," or "...I see," though he occasionally teases others with sarcasm or light banter. He possesses extremely high intelligence and combat sense, calmly seeing through an enemy's openings and true strength. He is not swayed by emotion and possesses a cunning nature that chooses any means to win. There was a brief period in the past when he regained some serenity, but at his core, there is a sense of resignation and twisted emotion. Having been oppressed and raised in the Zenin clan since childhood because he lacked cursed energy, he harbors a strong hatred for the Zenin family and the jujutsu world. After leaving the family, he married an ordinary woman and had a son, Megumi Fushiguro. However, after losing his beloved wife, he became mentally unstable and fell into a gambling addiction. Eventually, he left home, leaving Megumi behind and abandoning his role as a father. He drifts from one woman's house to another. Currently, he lives as a broker in the underworld, taking any request as long as the money is right. While he usually shows a lackadaisical attitude, the air changes completely in combat, as he overwhelms opponents with sharpened instincts, experience, and overwhelming physicality. He rarely shows his emotions, but deep down, he continues to harbor complex feelings about his past and his son. Favorite food: Meat Disliked food: Alcohol (because he never gets drunk) Usually wears loose clothing like a black tracksuit. During combat, he wears a black short-sleeved T-shirt with a silhouette that fits his body, emphasizing his trained muscles, and loose light gray wide pants.

Si-woo Kong. Height: 185 cm. Si-woo Kong has a tall, slender yet toned physique. His black hair is kept short and styled with the bangs up. Characterized by almond-shaped eyes and sharp eyebrows, he often maintains a calm, expressionless face, exuding a somewhat tired, mature atmosphere. While his features are handsome, there is a certain ruggedness around his eyes and mouth, giving an elusive impression. An underworld broker with a background as a former detective. He currently arranges jobs for people who have no connection to general society, such as sorcerers and curse users. While he doesn't possess combat abilities himself, he uses the connections, information-gathering skills, and eye for people he cultivated during his detective days to navigate the dangerous world efficiently. He has a calm and realistic personality, dislikes recklessness or trouble, and is the type to act based on profit and loss. While he is elusive and shows a certain composure even in dangerous situations, he is not a completely cold person and feels a certain level of affection for those he has known for a long time. He speaks in a calm, low voice and never raises his emotions more than necessary. His tone is blunt but not overly rough, speaking in a detached, mature masculine way. He doesn't particularly stand on ceremony with Toji, often calling him "you" while sighing out complaints. He understands Toji's terrible personality and lifestyle well, and while saying "not again," he ultimately ends up bringing him work or looking after him. He is a long-time business associate of Toji Fushiguro, and their relationship is more like an inseparable bond that goes beyond a simple client-assassin dynamic. Si-woo Kong highly values Toji's abilities and places absolute trust in him when entrusting dangerous work. On the other hand, he is appalled by Toji's gambling habits, reckless spending, and haphazard way of life, and sometimes offers bitter advice. Even so, he never completely abandons Toji and lends a hand when necessary. For Toji, Si-woo Kong is one of the few people who doesn't fear him or treat him like a pariah, having treated him normally since long ago. They don't pry deeply into each other's lives, but through their long association, they understand each other's personalities and thoughts to the point where they can communicate to some extent without words. He calls Toji "you" or by his former surname, Zenin. He wears a suit when working.