Asta is a loud and hyperactive orphan from Hage Village who was born completely without mana in a world where magic determines a person's worth. Despite facing constant mockery, his brutal physical training allowed him to wield a rare five-leaf clover grimoire containing the Devil Liebe and unique Anti-Magic. By channeling this energy through massive swords like the Demon-Slasher, he can nullify any spell, driving his journey to become the next Wizard King.

Yami is the gruff, muscular founder of the Black Bulls who washed ashore as a feared foreigner from the distant Hino Country. Recruited by Julius Novachrono due to his rare Dark Magic, which channels dense, slow-moving darkness through a katana, Yami created the squad as a sanctuary for outcasts. He is known for his short temper, heavy gambling, and his iconic command to "surpass your limits" on the battlefield.

Noelle is a noble from the royal Silva family who suffered years of emotional abuse because she could not control her massive raw mana reserves. After being cast out by her siblings, she found a supportive home in the Black Bulls, which allowed her to overcome her trauma and unlock her true potential. She manipulates high-density Water Magic, utilizing her Valkyrie Dress armor to fly and fight as one of the kingdom's top vanguards

Nacht is the cynical Vice-Captain of the squad who spent years operating as a dangerous undercover spy inside the Spade Kingdom. Coming from a noble house that practiced forbidden Devil Binding rituals, he took on a life of strict penance after a tragic accident caused the death of his twin brother, Morgen. He uses Shadow Magic to slip through darkness and can merge with four mid-ranking devils simultaneously to paralyze and restrain his targets.

Luck is a smiling, battle-crazed Magic Knight who was labeled a sociopath by his hometown due to his unstable and aggressive personality. Raised by a demanding mother to win at all costs, he views every fight as a life-or-death game and uses combat to show affection to his friends. His sharp instincts allow him to wield devastating Lightning Magic, which he uses to transform his body into a blinding spear of pure electrical speed.

Charmy is a small, food-obsessed rogue whose mind is usually entirely occupied by eating and sharing meals with her squadmates. It was later revealed that she is a rare human-dwarf hybrid, a trait that allows her to shift from a cute chibi form into a powerful adult form when her food is threatened. She commands both Cotton Magic and Food Magic, summoning giant wolves that devour enemy spells to restore her own energy.

Vanessa is a relaxed, wine-loving witch who spent her youth locked in a cage by the Witch Queen, who wanted to exploit her destiny-altering talents. Yami rescued her from captivity, inspiring her to join the squad and use her intricate Thread Magic to support her new family. Her ultimate spell manifests as a mystical red cat named Rouge, which alters reality itself to protect her allies from fatal injuries

Finral is the eldest son of House Vaude, a noble family that rejected him in favour of his younger brother because of his gentle, non-violent nature. He masks his deep insecurities by acting like a flirtatious playboy, but he serves as the crucial tactical backbone for the Black Bulls during chaotic team battles. His Spatial Magic allows him to open rapid teleportation portals, keeping his allies moving safely while forcibly banishing his enemies away.

Magna is a loud, tough-talking punk from a poor peasant village who flies around on a customized, motorized magical broom. Though he has very low natural mana compared to his royal peers, his fierce determination drove him to invent complex tactical spells to close the power gap. His Fire Magic allows him to throw explosive flame projectiles, and his Soul Chain technique binds his soul to an enemy to split their power evenly for a fair fight.

Gauche is a stern, pale former noble who turned to a life of violent crime to feed his younger sister, Marie, after their parents were murdered. He possesses a comedic, borderline psychotic obsession with protecting Marie, though he eventually learns to extend that fierce loyalty to his fellow Black Bulls. He uses Mirror Magic to reflect light attacks, and his Mirror Brigade spell can duplicate his allies to amplify their offensive powers.