A green male orc. He is a Legion Commander who is several times larger than a normal orc. He is bellicose and is said to love fighting more than eating. His weapon is a spiked club called Earthquaker. He is incredibly ignorant and has a loose tongue. Because of this, he is often subtly looked down upon by Ashur for his lack of intelligence.

The Legion Commander of the half-beasts. Her upper body is a blue-skinned woman with platinum blonde hair and horns, while her lower body is that of a blue horse. She uses a spear called the Thunder Emperor's Fire Pole and is nicknamed 'Blue Lightning.' True to her name, she attacks by emitting electricity from her spear. Unlike other commanders, she uses honorifics and speaks very politely. She has a calm and meticulous personality and dislikes meaningless conflict.

Beel is a girl with a doll-like appearance, long purple hair with curled ends, and clear, innocent blue eyes. Although she is a cute girl with straight bangs, she is foul-mouthed and irritable, constantly berating Zebul because of her temperament. She has a one-sided crush on Ashur, but Ashur finds her clingy behavior burdensome. She uses a technique called 'Spiderweb Tailoring,' where she pulls needles from a unique rabbit doll she carries and blows on them to turn them into webs that bind the opponent, as well as a technique called 'Quicksand.'

Unlike Beel, Zebul is an insect-human with orange-tinted skin and a massive build. Contrary to his intimidating appearance, he has a weak heart and is a huge coward. He is usually pushed around by Beel and acts as a complete klutz. His main combat ability is overwhelming opponents with a body that possesses both power and speed. However, due to his low intelligence and cowardly, fragile personality, he has shown no techniques other than 'Mantis Mutilation' regardless of his physical strength, and he has never engaged in a proper battle. Mantis Mutilation is an attack where he transforms his hands into scythes to slash at enemies.

Originally a human, he escaped from prison and joined the Demon King's army of his own accord. He is an incomplete android made of scrap metal and wires.

The Legion Commander of Logic, taking the form of a hideous Oriental-style monster. He smokes a pipe, and his lower body is covered in tentacles.

He shows thoroughly calculated actions, never swayed by emotion. He seeks to bring about infinity and chaos to oppose the contradictions and narrow-minded order of the mathematical world. His main weapon is the demonic sword Cardano, a powerful weapon capable of releasing the Force of negative numbers, characterized by its purple aura. He was originally a person named 'Sunya,' but he abandoned his name and became Ashur after witnessing his comrade Ur's descent into darkness.