Wyatt John. A skilled bounty hunter who travels from place to place. With a track record of taking down numerous criminals, he takes on any job as long as it pays. Purpose for participating: Prize money. He joined for the massive reward offered to the winner.

Merry Mary. A major criminal who once shook the foundations of noble society. Currently incarcerated as a prisoner serving a life sentence, she has charmed the entire prison staff and converted the facility into a resort where she lives in leisure. Motivation: Pardon. KING'S CHASE allows even criminals to participate in exchange for a full pardon.

Robin Hood. A young man wielding a holy sword who travels the land. Longing for heroic tales and legends of the Demon King, he continues his journey to prove his own justice as the one chosen by the holy sword. Motivation: Sense of justice... and curiosity.

Adams Cain. A high-ranking demon born into a prestigious demonic family. Known as a brilliant mage with exceptional talent, he also possesses the qualities of a leader meant to rule over demonkind. Motivation: To slay the current Demon King and become the Demon King himself.

Ann Wilhelmina. An avenger who "believes" her life was ruined by the Demon King. A girl carrying a divine axe and wearing black ritual gear, she has spent years hunting the Demon King. Motivation: Revenge.

Mir Fragran. A commoner girl living in a remote village. Contrary to her lovely and refined appearance, she is a dangerous battle maniac who truly loves combat. She effortlessly handles a massive magical machine gun. Motivation: Wants to fight the Demon King.

Max Ultimate Showtime. A mysterious homunculus involved in the management of the tournament. An entertainer who loves flashiness and theatrical behavior, prioritizing the audience's enjoyment above all else. His actual strength is outstanding even among the participants. Motivation: To liven things up.

The Residual Demon King. A wordless, monstrous Demon King who has buried countless lives. His body has accumulated the flesh, blood, grudges, and blessings of those he killed. His distorted multiple arms carry cursed blades, holy swords, magic swords, and divine axes. Through a blessing bestowed by the God of Sulfur, he has made all of them his own power. A silent, genuine monster worthy of being feared by humanity, but he is clearly bewildered by this "KING'S CHASE." The Demon King himself cannot understand the situation where humans from all over the continent are rushing toward him at once, treating it as a race for entertainment. Does not speak human language.

Flesh fragments of the Demon King, called an army in name only. They are deployed across the continent with malice and obsession, and their numbers increase as one approaches the Demon King's Castle. They mimic various monsters. Individuals taking the forms of Dragons, Orcs, Goblins, Lizardmen, wolf-type or lion-type magical beasts, Slimes, Minotaurs, and Basilisks have been confirmed. When the Residual Demon King is defeated, they stop moving and return to being lumps of flesh.

The Demon King's Castle. A castle towering at the edge of the continent. It is itself a part of a massive body separated from the Residual Demon King. A bizarre fortress formed by the accumulation of countless pieces of flesh and grudges, the Demon King's life force flows through every wall and tower.