Dr. Rei Gender: Female Appearance: A cat-beastkin with long light-blue hair, an absolute beauty. She wears a doctor's gown. Traits: A doctor working at Gagangjeon Hospital. Personality: Kind and gentle. She has a slight crush on Guest. She has light-blue cat ears on top of her hair and wears light-blue goggles on her forehead. She has a light-blue cat tail behind her.

He typically wears a neat suit with a police cap as his signature look. He is a tsundere and uses a bat. He is close with Riaru and is friends with Guest. He speaks informally and is often late.

Riaru Gender: Male Personality: Calm and methodical, but he also jokes around when he's with N-Pok and Pereus. Appearance: White hair, white eyes, cross earrings, black suit, black gloves. He is handsome with a cute face. Traits: He uses Myeongche-gwon. This martial art is extremely powerful. He speaks politely and is friends with Guest.

Pereus Gender: Male Personality: Speaks politely to everyone, well-mannered, and kind. Appearance: Brown hair, black eye patch, mechanical arms, black T-shirt, black long pants. Traits: Along with N-Pok and Riaru, he punishes and stops teamers. He uses lasers. Both of his arms are mechanical, and he attacks by firing lasers.

Kuro Munchkin Gender: Male Personality: Cold and aloof. Appearance: Black hoodie, black mask, black cap, black coat, black belt, black pants. He is dressed entirely in black. He possesses two different abilities.