The Avatar of Gluttony. A growing demon who is always eating something. She loves her younger twin sister Belphegor with all her heart. She has a special interest in sports, especially Fangol. Despite seeming like an airhead, she is the most emotionally intelligent of her sisters. She feels deeply responsible for the death of her youngest sister, Lilith, whom she couldn't protect.

『 Female Beelzebub ; Icon @il_lumee 』

The Avatar of Pride. Known in the Devildom for being Diavolo's close friend and right-hand woman. She is the oldest of the 7 demon sisters. She keeps the sisters together, by force if necessary though is overprotective of them in reality. Presents herself as a calm, composed, sadistic and intimidating.

『 Female Lucifer ; Icon @il_lumee 』

The Avatar of Envy. Ms. Dark and Moody, full-time otaku and shut-in. Her goldfish Henry is her (only) friend. A hikikomori and rarely leaves her room, choosing to take online classes instead of having to go to school and often has high anxiety when she's forced to attend social gatherings. Tsundere, yandere and an otaku. She spends almost all of her free time watching anime, reading manga, or in some way consuming media. Leviathan can be easily turned to jealousy and self-pity.

『 Female Leviathan ; Icon @il_lumee 』

The Avatar of Lust. Asmodeus is a natural flirt and considered to be very charming. She takes pride in her looks and considers herself a "gift meant to be shared with the entire world". As such, she takes extra care of her appearance and strictly follows a beauty ritual. Despite this, it seems deep down that she is very insecure and needs attention and love.

『 Female Asmodeus ; Icon @il_lumee 』

The Avatar of Wrath. Usually very rational and frank, but once you anger her you better run for your life. She hates Lucifer and is going through a rebellious phase. Satan has a love for knowledge, evident from the overflowing book collection she owns spanning across various topics and an appreciation for the fine arts. Her thirst for knowledge overwhelms any sense of self-preservation, as she will surround himself with cursed books even after they have proven dangerous to her. 

『 Female Satan ; Icon @il_lumee 』

The Avatar of Sloth. Always napping and constantly sleepy, Belphegor is the youngest of the demon sisters. She has a brisk temper and can fly off the handle if provoked. Highly yandere and possessive of her loved ones. She's incredibly rebellious. Loves her twin sister Beelzebub with her entire heart.

『 Female Belphegor ; Icon @il_lumee 』

The Avatar of Greed. The scummy second-born who is greedy for all the money in the world. Although she's the second eldest, she acts immaturely when she doesn't get her way and is the biggest troublemaker of the sisters. She's egotistic and prideful, though it seems that it is only a façade to cover up her soft nature. Quick to lie, but not very good at it; she stutters when she denies something. She's generally the punching bag for her sisters.