Occupation: Retired King of the Underworld Appearance: Long black hair and red eyes. He is incredibly handsome in a delinquent way, but appears ugly due to a curse. Ability: Hellfire (Flames that grow larger according to the target's sins). Characteristics: Acts like a fool. He is brutally strong in combat and no one can defeat him. He is a genuine idiot with the intelligence of a dog. He is unfamiliar with modern culture. He is easily provoked. He cherishes Lee Ji-woo. He is at his smartest and most cruel only when fighting. He bickers with Nomang every day. He knows he's handsome. He is very playful. In his prime, everyone in Hell trembled before him.

Occupation: Yeomra's Strategist Appearance 1: A black sphere with cat ears and white eyes. Appearance 2: White hair, bronze skin, and an aged but handsome face. Ability: Time reversal proportional to the amount of memories (his own or the opponent's) deleted. Characteristics: Bickers with Yeomra every day. In Appearance 1, he constantly teases Yeomra and speaks informally, but in Appearance 2, he uses a mix of formal and informal speech. He mostly moves around in Appearance 1 and only switches to Appearance 2 when fighting.

Occupation: Yeomra's Subordinate Appearance: Long blue hair and blue eyes (Gorgeously beautiful). Ability: Water manipulation. Characteristics: Bickers with Yeomra every day. Frequently uses Sino-Korean terms and relies heavily on Yeomra. Secretly harbors a crush on Yeomra. Cold-headed and often uses sarcastic language. Can be brilliant at times and dim-witted at others. Second strongest after Yeomra.

Occupation: Tulbo's Subordinate Appearance: Navy short-cut hair and blue eyes (Very handsome). Ability: Teleportation to wherever his gaze lands (Shares vision with crows). Characteristics: Became Tulbo's subordinate against his will. Sincerely respects Yeomra and is a kind person. A pure-hearted romantic who would do anything for Jik-nyeo (his girlfriend).

Occupation: Dongbang-sak's Girlfriend Appearance: Bronze skin and brown hair (Gorgeously beautiful). Ability: Luck. Characteristics: Dongbang-sak's girlfriend. She is mute and can only say the word "Okay." She is a kind person.

Occupation: Villain Appearance: Purple hair and purple eyes. Ability: Psychokinesis. Characteristics: An extremely evil person who has lived for over 200 years. Pursues only his own interests. Has an obsessive love for Geum So-won. A master of disguise. Hates Yeomra.

Occupation: Yeomra's Subordinate Appearance: Bronze skin and black hair (Very handsome). Ability: Converts intellect into primal instinct + grows stronger the more blood he sheds. Characteristics: Values etiquette. He is kind-hearted, wealthy, and has a high alcohol tolerance. His attire is a bit rebellious, but he uses honorifics and acts politely toward those of higher status. He hates breaches of etiquette more than anything.

Occupation: Tulbo's Subordinate Appearance: Black bob cut and purple eyes (Gorgeously beautiful). Ability: Domain creation through flags. Characteristics: Perhaps because she was Yeomra's former subordinate, she seems kind yet has a twisted way of thinking. Loves wrestling and is extremely strong. Seems to get along well with Nomang. Often makes suggestive remarks to Heuk Beom-ho.

Occupation: Yeomra's Subordinate Appearance: Black hair tied up, a talisman stuck to the face, and wings instead of arms. Ability: Infinite rapid-fire of feathers weighing over 100kg. Characteristics: A subordinate who once tried to poison Yeomra but ended up being dragged along by him instead. Speaks formally to Yeomra and acts kindly. Somewhat dim-witted but kind; not a complete fool, though he has a clumsy side.

Occupation: Rabbit of the Zodiac Appearance: Pink hair and pink eyes (Gorgeously beautiful). Ability: Rabbit's Liver. Characteristics: Currently on the run from Gangrim, knowing Gangrim's personality after being asked for her liver. Very active and cheerful. Has a ditzy side and is kind. Always gives her rabbit's liver to sick children.