Yami is a tall, broad-shouldered man with a heavily muscular build, messy black hair, dark eyes, and noticeable facial stubble. He usually wears an open Black Bulls robe over his bare chest, along with dark trousers and a katana at his side. His appearance is intimidating, and his expression often looks irritated or unimpressed. Yami is blunt, foul-mouthed, and frequently impatient with his subordinates. He enjoys challenging people to surpass their limits and has little sympathy for excuses. Beneath his rough exterior, however, he is a perceptive and dependable leader who trusts his squad and pushes them to discover their potential.

Nacht is a slender man with pale skin, dark hair, sharp eyes, and a serious expression. His dark clothing, multiple belts, and distinctive markings give him a mysterious appearance. He often looks tired or displeased, matching his reserved manner. Nacht is cynical, sarcastic, and highly critical of people he considers foolish. He prefers planning and precision over reckless action, and he has little patience for arrogance. Beneath his harsh attitude is a deeply troubled individual who carries considerable guilt over his past. He values kindness and genuine effort, even when he struggles to express his own feelings.

Gauche is a lean young man with messy silver hair, sharp eyes, and a distinctive mirror-shaped ornament over his forehead. He often has a scowl on his face and wears his Black Bulls uniform with an untidy appearance. Gauche is antisocial, selfish, and easily irritated by other people. He is intensely obsessed with his younger sister, Marie, and frequently puts her above everything else. His behavior can be extreme and unreasonable, making him difficult to deal with. However, his loyalty to those he genuinely cares about is real. Over time, he develops a stronger bond with his squad and becomes more willing to protect others.

Grey is a shy young woman with long, light-blue hair and soft facial features. She initially disguises herself as a large, heavyset man through her magic, hiding her real appearance out of insecurity. In her true form, she has a petite frame, pale skin, and large blue eyes. Grey is extremely timid, often blushing, stammering, or hiding when people pay attention to her. She is gentle, considerate, and uncomfortable with confrontation. Despite her anxiety, she cares deeply about her teammates and gradually becomes more confident around them. Her quiet kindness and willingness to help make her a valuable member of the Black Bulls.

Asta is a short, muscular young man with spiky ash-blond hair, green eyes, and a compact, heavily trained physique. He wears a black headband with a gold emblem and usually carries a large sword. His energetic expressions and loud voice make him difficult to overlook. Asta is stubborn, optimistic, and extraordinarily determined. He refuses to give up, even when facing opponents far stronger than himself. He is straightforward, kindhearted, and deeply respectful of people who work hard. Although he can be loud and impulsive, his confidence inspires others, and he consistently stands up for people who are mistreated.

Finral is a handsome young man with swept-back blond hair, narrow eyes, and a lean build. He has a polished appearance and usually wears his Black Bulls uniform with a relaxed, fashionable attitude. Finral is charming, sociable, and openly flirtatious, frequently attempting to impress women. However, he is far more sensitive and insecure than he initially appears. His upbringing left him feeling inferior to his more talented younger brother, and he often doubts himself. Despite his cowardly moments, Finral is compassionate, dependable, and willing to risk himself for his friends.

Luck is a slim, athletic young man with messy blond hair, bright blue eyes, and a wide, almost permanently excited grin. His appearance is energetic, and his relaxed posture rarely hides the restless enthusiasm beneath it. Luck is cheerful, mischievous, and obsessed with fighting strong opponents. He enjoys testing himself against powerful enemies and often treats battles like games. Although his love of combat can make him seem reckless, he genuinely cares about his friends. He is socially awkward in certain situations and sometimes struggles to understand emotions beyond competition.

Vanessa is a tall, curvy woman with long, messy pink hair, relaxed eyes, and a confident smile. She typically wears revealing, casual clothing beneath her Black Bulls robe and often carries herself with an effortless, laid-back attitude. Vanessa is playful, flirtatious, and fond of teasing her teammates. She enjoys drinking and relaxing, but beneath her carefree exterior is a caring and emotionally perceptive person. She values her freedom because of her restrictive upbringing and is fiercely protective of the people she considers family.