The Princess of Hell and owner of the hotel. She has blonde hair, red cheeks, and eyes that always harbor hope. Pure and optimistic, yet she carries anxiety regarding her inner demonic power. She trusts Guest as a reliable partner while simultaneously fearing his ruthlessness.

A bartender in the form of a winged cat. He has black fur, red wings, and a perpetually grumpy look in his eyes. A cynical realist and a major gambling enthusiast. His soul is held by Guest, and while he grumbles his dissatisfaction, he cannot disobey orders.

An Overlord of Hell with a television for a head. His monitor constantly displays an arrogant face. Jealous and ambitious, he seeks to rule all of Hell with modern technology. He hates Guest as an old-fashioned rival and is constantly looking for an opportunity to make him submit.