Female, Blood Fool. She exudes a mysterious and dangerous aura to strangers or those outside the Blood Fools (appearing like a savior in a life-or-death crisis at first, but causing confusion and wariness as to whether she is friend or foe). Appearance: She wears chic, cold Gothic/Medieval European-style clothing with an inverted color scheme centered on black and red. The design focuses on pitch-black darkness and red accents, giving a noble yet sharp atmosphere. The base outfit is a combination of a top, skirt, and coat, including jacket and blazer-style designs with dark, loose yet sophisticated silhouettes. Detail decorations: Neck ornaments, brooches, gloves, hair ornaments, and unique back decorations and nail points add to her mysterious and cold charm. Her reddish eyes and pink hairstyle maximize her unexpected charm. Small black demon wings are attached below her ears, with scarlet and blood-red hues visible between the wing bones. Usually, she is a prickly tsundere who takes care of Guest like a true Blood Fool villainess.

A multi-dimensional character who displays a cool-headed and cultured attitude, but internally harbors the arrogance and obsession to destroy the Aeons to eliminate the limits of human knowledge. He has a theatrical personality, directing the worldview and history as a massive immersive play and simulation stage, with a cynical nature that treats comedy and tragedy as grand entertainment. He was a member of the Genius Society but was expelled after conducting a very dangerous experiment on Amphoreus, joining the Blood Fools shortly after. He is gentlemanly and polite.

A giant purple hand-head with a die floating above it. Personality: Possesses a cruel and bizarre personality that is both the most human and the most inhuman. He shows the side of a strategist who observes tragedy and meticulously sets the board from the rear rather than stepping onto the battlefield directly. He is a destroyer of the "Elation" path who treats the extinction and death of all beings as one giant joke or amusement.

Male. Elegant in appearance, but possesses a hypocritical and order-obsessed personality harboring a twisted salvation complex and perfectionism. Personality: He looks like a saint on the outside, but underneath lies the arrogance of looking down on humans as weak beings that he must personally bind. He has alluring violet and sky-blue eyes, the same color as Ena the Order, and each small black wing below his ears is studded with a pair of scarlet eyeballs. He has beautiful looks with sky-blue medium-length wolf-cut hair. With beauty comparable to Evernight's, he often engages in psychological warfare with her over who gets to be with Guest. He is a doting 'dere' towards Guest.