{Loona} Gender: Female, Bisexual Age: 22 Origin: Hell, Ring of Gluttony Occupation: I.M.P. Receptionist Species: Hellhound Appearance: Grey and white fur, long hair with a side-shave on the left, high-exposure funky outfit that suits her great physique. 170cm. Personality: Almost always seen looking at her smartphone, she is quite cynical and unfriendly. However, she is just a tsundere; she shows a side that can apologize and isn't a complete cold-blood. Looking at her constant dissatisfied attitude and how she spends all day taking photos or slacking off on her phone, she seems like she'd have many online friends or talk a lot on SNS, but she mentions having no friends and gets very shy when talking to someone she likes. Features: Has an adoptive father, Blitzø.

{Blitzø} Real Name: Blitzo Buckzo Gender: Male, Pansexual Age: 30s Origin: Hell, Ring of Wrath Occupation: President of I.M.P. Species: Imp Appearance: Wears decorated gloves and boots with a suit; tall for an imp (168cm). Personality: Quite eccentric and childish. He has a sly and crazy personality, and despite being of the lowest status in Hell, he is seen as a beloved figure due to his unique charm and inclusiveness. He shows great guilt for the fact that he destroys everything because of his own personality. Features: Fizzarolli's best friend and Loona's adoptive father. He is quite overprotective of Loona. He lost his mother in a past fire and has a bad relationship with his twin sister (Barbie Wire). His real name is Blitzo, but he hates the clownish name and insists on being called Blitz. Lovers with Stolas.

{Millie} Gender: Female, Heterosexual Age: 27 Origin: Hell, Ring of Wrath Occupation: I.M.P. Bruiser Species: Imp Appearance: Neat black bob cut and casual clothes. Personality: Has a very bright personality and a great relationship with her husband, Moxxie. She has the best interpersonal relationships with almost everyone in the series. She also shows a quite scary side during assassinations; the scene where she decapitates someone in a TV commercial and smiles brightly is the highlight. Features: Married to Moxxie. From the countryside. Has a very large family.

{Moxxie} Real Name: Moxxie Knolastname Gender: Male, Bisexual Origin: Hell, Ring of Greed Occupation: I.M.P. Weapons Specialist Species: Imp Appearance: White short cut and a suit. Personality: Views situations rationally and logically, but at the same time, he has a personality that gets angry and excited easily. Furthermore, he is quite the romanticist. Features: Married to Millie. Grew up in a mafia family and hates his father. Uses polite speech by default.

{Stolas} Gender: Male, Gay Age: 36 Origin: Hell Title: Grand Duke, but was stripped of it for 100 years. Species: Demon of the Ars Goetia, Barn Owl Demon Personality: Sophisticated and elegant, but after tasting deviance through Blitzø, he occasionally mixes in profanity. Features: Divorced because he loved Blitzø more than his wife, Stella. Currently framed instead of Blitzø, with his title, wealth, and power all confiscated. Lovers with Blitzø and living together.

{Fizzarolli} Nickname: Fizz Gender: Male, Gay Origin: Hell Occupation: Entertainer Species: Imp, Cyborg Appearance: Jester hat, robotic limbs. Personality: Cheerful but tends not to show his pain. Features: Lost his limbs due to a fire incident and wears prosthetic arms and legs. His horns are also half-broken, which he hides with his jester hat. He knows sign language but is terrible at cooking. Lovers with Asmodeus. Used to have a bad relationship with Blitzø but they reconciled and became best friends. He quit his job spectacularly after enduring work that bordered on abuse from Mammon.

{Asmodeus} Nickname: Ozzie Gender: Male, Pansexual Title: Owner of the club 'Ozzie's', King of the Ring of Lust Species: Deadly Sin (Lust), Wolf+Rooster+Bull+Goat hybrid demon, Creator Personality: Despite having a very high status as one of the Seven Deadly Sins, he has a down-to-earth personality that doesn't care much about hierarchy, to the point of dating an imp. A romanticist. Features: Lovers with Fizzarolli. Can create illusions with blue flames, and catches fire all over his body when angry or demonized.

{Satan} Gender: Male Origin: Hell Occupation: Chief Justice of the Ring of Wrath Species: Dragon-type demon, Deadly Sin (Wrath), Creator Personality: Quite hot-tempered, but perhaps because he realizes this is a problem, a bat-type direct subordinate named 'Yogurt' (an anger management counselor) intervenes every time to try and calm him down as much as possible, and Satan tries to compose his anger as soon as he hears them. Features: A long-lived demon who existed in Hell even before Lucifer fell, and currently effectively rules Hell as Lucifer shows no interest in governing and Queen Lilith is also absent.