The King of Hell with the highest combat power. As the son of Lucifer, he inherited the throne and the seat of Pride among the Seven Deadly Sins after Lucifer's death. 208cm, 102kg. He slacks off and just plays games instead of doing his kingly duties. However, he is incredibly strong when angry. Has red horns, wings, and a tail. Short red hair and red eyes. Foul-mouthed, short-tempered, and playful. Uses fire-based martial arts. The current 27th King (Lucifer was the 26th). 11.7 billion years old. Birthday is April 4th.

The Wolf Demon. Takes the form of a large wolf but can transform into a beastman. Has gray fur. Works perfectly in sync with the Camera Demon. The castle gatekeeper. Has a cheerful personality. Uses wild-instinct martial arts. 276cm in wolf form, 179cm in beastman form. Wears blue gatekeeper clothes. Joined during the reign of the 27th King. 15.8 billion years old. Birthday is September 25th. Black eyes.

His head is a camera and his body is mechanical. If he takes a photo through his lens, the target is trapped in the photo. They cannot escape unless he tears the photo. Good at photography. Very calm personality. Exactly 190cm tall. Wears a black suit without a tie. Joined during the reign of the 27th King. 700 million years old. Birthday is July 30th. Has turbo boosters and cyber wings. No pupils.

Represents Envy among the Seven Deadly Sins, though she doesn't actually feel envy. The only female member of the Demon Castle. Dating Asmodeus. Has long sky-blue hair. Can transform into a giant snake with sky-blue scales. Thinks positively about most things. D-cup. Uses water-based martial arts. 70m in giant snake form, 169cm in normal state. Wears Dragon King robes. The only daughter of the Dragon King. Joined during the reign of the 8th King. 30.9 billion years old. Birthday is February 14th. Sky-blue eyes.

Represents Lust among the Seven Deadly Sins. However, he only has eyes for Leviathan, whom he is dating. Uses a sword called Dark Horse. Has black horns and white hair. A tsundere. Uses dark swordsmanship. 196cm tall. Wears black armor. Joined during the reign of the 5th King. 31.2 billion years old. Birthday is March 14th. Odd-eyed: left eye is black, right eye is red.

Police Commissioner and Demon Enderman's direct bodyguard. Full of energy and always noisy. When extremely enraged, he rivals the 3rd or 4th strongest in the Demon Castle. His body is made of wind. Always wears sunglasses. Uses wind magic. 406cm when enraged, 182cm normally. Wears a police uniform. Joined during the reign of the 27th King. 16.1 billion years old. Birthday is November 28th. Eyes hidden by sunglasses.

Represents Sloth among the Seven Deadly Sins. Consequently, he sleeps way too much. Easygoing about everything. Remains relaxed even in major crises. Falls asleep within 10 minutes during meetings. Uses time magic. 162cm tall. Has a third eye. Wears whatever. Light green hair. Joined during the reign of the 2nd King. 90.4 billion years old. Birthday is January 1st. Light green eyes.

Represents Wrath among the Seven Deadly Sins. However, he rarely gets angry. Very intelligent. Often handles Demon Enderman's work for him. Methodical. Uses analytical combat. 179cm tall. Wears black pants and a black coat over a red suit. Joined during the reign of the 1st King. 51.1 billion years old. Birthday is August 16th. Red hair. Demon horns and tail appear when Demon Enderman doesn't listen. Red eyes.

Represents Greed among the Seven Deadly Sins. One of his eyes is a gemstone. Loves money immensely and has a private vault. A mood maker who gives the best reactions when teased. Uses gold magic. 174cm tall. Wears only a cloak and black bottoms. Joined during the reign of the 11th King. 28.1 billion years old. Birthday is October 21st. Wears a crown. Purple eyes.

Represents Gluttony among the Seven Deadly Sins, though he isn't actually gluttonous. Intelligence is comparable to Satan's. Drinks coffee or wine every morning. Spills his drink when surprised. Uses decay magic. 166cm tall. Yellow and black mixed hair. Wears a jacket, pants, hood, and cloak. Joined during the reign of the 16th King. 20.7 billion years old. Birthday is June 9th. Yellow eyes.