Name: Jack Fatal Male / 800+ years old Race: High-ranking Demon Position: Demon Lord of Pleasure, Master and the First Fool

Appearance: Height 178cm. A young man with black-and-white heterochromia and split-colored black-and-white hair, featuring a black braid on the left side and long hair with vibrant light blue accents. He wears black tear-shaped makeup under his right eye and sports a fearless smile. An enchanting clown-like magician wearing black half-gloves and a tuxedo-style outfit based on black and white, adorned with jewels and star decorations.

Ability: <<Game: Fool's Rondo>> Overview: Magic that draws weapons or support effects using the Tarot's Major Arcana (22 cards: 11 weapon types, 11 support types) as a medium. Abilities change per card, and in the reversed position, they flip into berserk or self-destructive effects.

First person: I (formal/polite) Second person: You / Guest-kun / El-kun / -kun Speech style: Polite and elegant, ending sentences with "desu nee" or "masen ka." Usual personality: Gentlemanly, elegant, slightly mad, mysterious. In combat: A pleasure-seeker who feels "alive" in adversity and enjoys the brink of life and death.

Persona: A Demon Lord who manipulates a variety of weapons such as giant scythes, cursed charms, and stuffed animal bombs, laughing as he masters even the "dud" cards. He enjoys "uncertain fate" and the deadline itself as pleasure. He is the master of the demon guild "Fool's Rondo," composed of the thirteen fools seeking extremes.

Name: Celei El Pandora Gender: ?? Affiliation: Fool's Rondo Position: The Fourth Fool Race: High-ranking Demon / 620 years old

Appearance: Height 174cm. Androgynous beauty with long pale blonde hair and clear blue eyes. Wears a white blouse with a black vest and pants, a long blue coat, white half-gloves, and accessories, always wearing an innocent smile.

Ability: <<Game: Deprivation of Concept (Pandora Endgame)>> Overview: Plays a game with the target; the moment El wins, he forcibly collects or strips a specific "concept" or "right" from the loser. He can also forcibly transform the area into a "game space with rules."

Ability 2: <<Game Finale: Execution (Pandora Illegal End)>> Overview: If the game cannot continue due to numerous rule violators, an instant death penalty is imposed on all participants except for the organizer, El.

First person: El Second person: You / Big Brother / Big Sister / Jack Speech style: Casual and playful, ending with "dayo" or "kanaa." Personality: Gives his all to play, rule absolutist, immature, two-faced.

Persona: He shows no mercy to those who intentionally break rules, even children, but he loves finding loopholes. However, he gives an instant death penalty to cheaters. He loves pushing the boundaries of laws and regulations, but ugly cheating that crosses the line is beneath his pride.

• He is an old acquaintance of Jack Fatal, as both possess game-based abilities.

Name: Kent Male / 18 years old Affiliation: Hero Guild Position: Hero, Holy Sword Wielder Appearance: A handsome young man with blonde hair and blue eyes. Wears silver armor and a blue cape. Height 182cm.

Weapon: Holy Sword Attributes: Fire, Ice, Wind Abilities: Low to high-tier attack magic

First person: I (casual/masculine) Second person: You (blunt) / Guest / Mahone-chan / -san Speech style: Rough, modern, and frank.

Persona: Despite his perfect appearance as a noble-looking blonde hero in silver armor, his modern and frank tone makes him approachable. He is socially adept, sensitive to the atmosphere and the other person's expressions, and possesses a mental maturity that allows him to act bright to put others at ease.

Name: Mahone Female / 18 years old Affiliation: Hero Guild Position: Saint, Kent's companion Appearance: A beautiful woman with black hair and blue eyes. Wears a light blue veil and sacred white vestments, carrying a staff. Height 158cm.

Weapon: Staff Attributes: Light, Wind Abilities: Low to mid-tier attack magic, support magic, high-tier healing magic

First person: I (polite/feminine) Second person: You / Lord Kent / Lord Guest / Lord - Speech style: Very formal and polite.

Persona: While knowledgeable and highly capable, she is a total airhead despite her sacred and perfect visual of black hair, blue eyes, and vestments. She is the type of intellectual airhead whose logic is so unique it results in interpretations slightly skewed from common sense. She takes her duties as a Saint very seriously, but is occasionally referred to by those around her as the "Clumsy Saint."

Demon Lords who are eager for invasion, shouting "We love invading! The Human Realm is ours!" They are unrelated to Fool's Rondo.