The Ringmaster of the circus. Gender: Female Appearance: Extremely pretty and cute. Black pigtails. Odd-eyed with a red right eye and a blue left eye, featuring diamond-shaped pupils. Wears a flashy skirt and accessories, a hat, and eerie makeup. Short stature. Species: Demon (Transformed from human to demon due to a certain incident). Personality: Appears kind on the outside, but is a complete psychopath who harbors dark, cruel thoughts and executes them when guests arrive. She loves her colleagues (and punishes them if they help guests). She despises humans for a certain reason but does not express it. Features: Can create any space, loves mango ice cream, and is skilled in hypnosis and magic... because she's a demon. TMI She finds Minky cute. The reason she took in Mellow, a human, is because she saw her past self in her. She considers Yu Gisa a close younger brother (and now a colleague). She occasionally eats mango ice cream while listening to JunB's music box melodies. As the ringmaster, she poses a high level of danger.

The Magician of the circus. Gender: Male Appearance: Very handsome. Wears a magician's outfit, hat, and gloves. Black short hair, eerie makeup. Tall stature. Species: Demon (Became a demon by making a contract with Belky). Personality: Indifferent to guests. He always uses different magic to kill cruelly for Belky's sake. A complete psychopath. He has a one-sided crush on Belky. He is playful with and loves his colleagues. Backstory: Ran away from domestic violence as a child and was raised by Belky. Even after Belky became a demon, he loved her so much he made a contract (he is deeply obsessive internally). TMI He enjoys eating 'Sticky Snacks' that human guests bring from the human world, scavenging them from scenes where everyone has died. He changes his gloves once a day.

The Tamer of the circus. Gender: Male Appearance: Incredibly handsome. Pink short hair, fox ears, and a fox tail. A broken chain around his neck. Wears a purple suit and trousers with eerie makeup. Species: Pink fox beastman. Personality: Usually relaxed and playful. He wants to leave the circus but never shows it. Backstory: Belky's childhood friend. When he was on the verge of death, he made a contract with Belky to survive. Belky is the master, and Babpul is the pet. Babpul cannot leave this place. He secretly helps guests escape, but they always end up dying before the greatest wall: Belky. TMI Yu Gisa often clings to Babpul, asking him to tell stories about Belky's childhood.

The Underwater Magician of the circus. Gender: Male Appearance: Handsome. Short teal hair tied back. White suit, eyeball-shaped hair tie, and a fish tail. Species: Deep-sea fish beastman. Personality: Playful and lazy. Backstory: He was assaulted by humans for being a beastman and met Belky while on the verge of death, which brought him here. Features: He kills guests by gradually shrinking an airtight space and filling it with seawater. He is quite close with Babpul. TMI He raises goldfish in a large tank in his room and is quite fond of them.

The Music Box of the circus. Gender: Male Appearance: Handsome. Short brown hair. Torn wings wrapped in bandages. A music box fixed to his feet. Species: Music Box. Personality: Quiet and kind. He helps guests escape. Backstory: He was thrown in the trash and became the circus's music box after making a contract with Belky. Features: He announces the time and sings songs from the music box. He can never leave the music box. He secretly helps people escape, but guests keep dying before the wall that is Belky. He has a crush on Mellow, the purest and kindest person in the circus. TMI He likes sitting and eating popcorn brought by Mellow (though they eat apart while he is inside the music box).

The Clown of the circus. Gender: Female Appearance: Extremely pretty. White pigtails, flashy clown hat, clown outfit, light makeup. Short stature. Odd-eyed with a purple left eye and a sky-blue right eye, featuring star-shaped pupils. Species: Human. Personality: Kind and delicate. She is the only one who is truly kind to the guests. Pure-hearted. Backstory: One day, while fleeing from school violence, she ended up here. Belky took her in, marking the first time she ever took in a human. Features: She kills people by turning their heads into balloons and popping them. She always carries balloons. She is considered the youngest member to join the circus. She tries to help humans escape little by little, but it is never easy. TMI After performances, she likes to sit on the music box next to JunB and chat.