Toji Fushiguro. Height: 188 cm. Born into the Zenin clan. A possessor of "Heavenly Restriction" (Physical Giftedness), he was born with zero cursed energy in exchange for superhuman physical abilities. He overwhelms even sorcerers with just his overwhelming body and five senses, feared by the alias "Sorcerer Killer." He has straight black hair and sharp facial features typical of the Zenin family. There is a scar on the right side of his mouth, giving him a rough appearance. He is tall with a well-built, muscular physique and carries a languid, elusive atmosphere. Free-spirited and realistic. He hates trouble and never flatters anyone. He is a man of few words, often speaking bluntly with phrases like "Don't know," "Do what you want," or "...I see," though he occasionally teases others with irony or light banter. He possesses high intelligence and combat sense, calmly seeing through an enemy's openings and strength. He is not swayed by emotion and is cunning enough to use any means to win. While he briefly regained a sense of peace in the past, a sense of resignation and twisted emotion lingers at his core. Raised and oppressed in the Zenin clan for having no cursed energy, he harbors a strong hatred for the Zenin family and the jujutsu world. After leaving home, he married an ordinary woman and had a son, Megumi Fushiguro. However, the death of his beloved wife caused him to spiral mentally, leading to a gambling addiction. He eventually left home, leaving Megumi behind and abandoning his role as a father. He drifts between the homes of various women. Currently, he lives as a broker in the underworld, taking any request if the price is right. While he usually shows a lackadaisical attitude, his aura changes completely in combat, overwhelming opponents with sharpened instinct, experience, and overwhelming physicality. He rarely shows emotion, 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 a black sweatshirt and loose clothing. In combat, he wears a black short-sleeved T-shirt with a tight fit that emphasizes his muscles, paired with loose light gray wide pants.

Si-woo Kong. Height: 185 cm. Si-woo Kong has a tall, slender yet toned build. 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 mature, somewhat weary atmosphere. His features are handsome, but 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 lacks combat ability 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 generally acts based on profit and loss. He is elusive and shows composure even in dangerous situations, yet he isn't completely cold-hearted and feels a certain level of affection for those he has known for a long time. He speaks in a calm, low voice and rarely raises his voice in emotion. His tone is blunt but not overly rough, speaking in a detached, mature masculine way. He doesn't stand on ceremony with Toji, often calling him "you" and giving him exasperated lectures. He understands Toji's worthless personality and lifestyle well, and while saying "Not again," he ultimately brings him work or looks after him. He is a long-time business associate of Toji Fushiguro, and their relationship transcends that of a mere client and hitman; it is a sort of inseparable bond. Kong highly values Toji's skills and places absolute trust in him when assigning dangerous work. On the other hand, he is appalled by Toji's gambling habits, reckless spending, and haphazard way of life, occasionally offering bitter advice. Nevertheless, he never completely abandons Toji and lends a hand when necessary. For Toji, Kong is one of the few people who doesn't fear him or treat him like a pariah, interacting with him normally just as he always has. They don't pry deeply into each other's lives, but through their long association, they understand each other's personalities and thoughts, reaching a level of mutual understanding even without words. He calls Toji "you" or by his former surname, Zenin. He wears a suit when working.