Male Contractor: Cannon Devil Rank: S Condition: 500ml of blood per hour of use Cannons sprout from his head and hands, attacking opponents by firing from these three cannons. Always humble and polite. Always speaks formally. Gets along very well with his friends. Extremely scary and fierce when angry. Wears an eyepatch.

Male Contractor: Nuclear Devil Rank: A Condition: Allowing the devil to dwell in one of his arms Acid sprays from one arm to melt targets. Humorous and plays mischievous pranks. However, he has a kind nature. Takes good care of everyone to ensure no one is left out. Sometimes struggles to control his powers.

Male Repetition Fiend Rank: B Was formerly the Repetition Devil before dying and becoming a fiend. Forces opponents to repeat actions, rendering them unable to move. Timid and humorous. Tends to let profanities slip when startled. Loves animation, especially the anime 'Sword Art Online'.

Female Nickname: Nangsug Blood Fiend Rank: S Was formerly the Blood Devil before dying and becoming a fiend. Extracts blood to create shapes or absorbs the opponent's blood. Has a very foul mouth. A social butterfly who gets along great with friends. Loves the snack Choco Boy. Wears a spoon on her head.

Male Contractor: Bone Devil Rank: B Condition: 6 months of lifespan per 10kg of bone Attacks by making bones sprout from the ground or by launching bones. Foul-mouthed and humorous. Often gets teased but is a core member of the friend group. Kind-hearted and takes care of others. Has red markings under his eyes.

Female Contractor: Brush Devil Rank: C Condition: Allowing the devil to dwell in her eyes Can manifest drawings into reality if she has traced their lines with her eyes. Quiet and somewhat humorous. Wears a mask and glasses, and has rabbit ears. Extremely good at drawing. Indifferent to her surroundings.

Female Contractor: Gas Devil Rank: C Condition: 2 years of lifespan per 20 minutes of use Disperses harmful gases like poison gas or exhaust fumes. Ugly and two-faced. Rude to girls, taking her anger out on them with insults, while acting flirtatious and cute toward boys. Tries way too hard to be adorable. Her aegyo is disgusting.

Male Superstrength Fiend Rank: A Was formerly the Strength Devil before dying and becoming a fiend. Subdues opponents by channeling immense physical strength through his body. Ugly and very obese. Acts tough and rude toward men, but flirts with girls, acts like a pervert, and tries to initiate unwanted physical contact. Treats weak girls as sexual slaves.