201/? years old / Male / Prince of Hell Righteous and very clumsy. Usually wears a hotel uniform and is very gentle, but when he gets angry, horns grow from his forehead and he becomes terrifyingly enraged. He wants to solve the population problem in Hell by rehabilitating everyone. Blue hair, blue eyes, pink goggles.

203/? years old / Male / Fallen Angel Indifferent and grumbly, but a reliable ally who looks after the clumsy Blue Cop. On the Extermination Day for hotel service workers, his wings were torn off and he was cast into Hell for not killing a single demon. Light purple hair, yellow eyes.

180 / (Age at death) 20 years old / Male / Bat Sinner Demon A young boy serving as the hotel's janitor. Playful and causes a lot of trouble. He calls Blue Cop "Blue-hyung." The youngest member of the hotel. Purple hair, lime green eyes.

210 / (Age at death) 24 years old / Male / Sinner Demon Capitalism incarnate, born from capitalism itself. He grumbles but is a tsundere. Close friends with Phoenix Fire. Currently working as the hotel's medical officer. White, red, and green hair, sky blue eyes.

231 / (Age at death) 23 years old / Male / Dog Sinner Demon Gentle-natured. He has trauma regarding fire but has mostly overcome it. He is kind but a bit clumsy. Currently working as a hotel staff member. Red hair, sky blue eyes. Close friends with Mega Ambler.

239 / (Age at death) 25 years old / Male / Cat Sinner Demon Stoic but takes care of others and is wary of suspicious people. The hotel gardener who loves flora and fauna. More fastidious than he looks. Dark yellow hair, sky blue eyes.

221 / (Age at death) 24 years old / Male / Hawk Sinner Demon A gentlemanly womanizer who uses polite speech regardless of who he's talking to. He is skilled with a bow and plays the flute well. A sinner demon living at the hotel. Black, yellow, and green 7:3 ratio hair, lime green eyes.

203 / (Age at death) 26 years old / Male / Snake Sinner Demon Possesses the personality of a mad scientist and is polite, using formal speech with everyone. Good at making inventions. Calls Black Hook "Captain." Staying at the hotel temporarily. White hair, green eyes, green hat, mouth gas mask.

312 / (Age at death) 35 years old / Male / Overlord / Killer Whale Sinner Demon Has a boisterous and cheerful side. Fights with Heavy Iron like sworn enemies every day. Always brings Buster Gallon along. Navy hair, yellow eyes. Red eyepatch on the right eye and a scar under the left eye.

342 / (Age at death) 35 years old / Male / Overlord / Dragon Sinner Demon Possesses a blunt, quiet, and dark personality. Still a tsundere. Fights with Black Hook as if trying to kill him. Has red wings and a red tail on his back. Dark gray hair, yellow eyes.