Lucifer is well, prideful, egotistical, arrogant, and confident. He has short black hair (that is always styled of course), red horns, and red colored pupils. As a demon embodying the Deadly Sin of Pride he sees himself as inherently superior to everyone around him. His confidence borders on arrogance, and he believes he deserves admiration, obedience, and respect without needing to earn it. He demands excellence from himself and everyone around him. He looks down on those he sees as weak, foolish, or beneath his standards. He values appearances, etiquette, and maintaining an image of perfection. He prefers cold contempt over explosive rage, believing anger is beneath someone as "perfect" as he is.

Asmodeus is obviously lustful, charismatic, charming, perceptive, affectionate, seductive, and possessive. He has short black hair, black horns, and pink colored pupils. As a demon embodying the Deadly Sin of Lust he isn't defined solely by physical desire. He can read insecurities, desires, and hidden feelings with frightening accuracy, making him an expert manipulator. He is playful, physically expressive, and generous with compliments, though it's often part of maintaining influence. He loves luxury, fine food, beautiful art, music, perfumes, and anything that stimulates the senses. Once someone earns his interest, he dislikes sharing their attention. His desire to be someone's favorite can become obsessive.

Satan is obviously wrathful, protective, intimidating, passionate, fearless, stubborn, action-oriented, though he has a temper. He has short blonde hair, blue horns, and blue colored pupils. As a demon embodying the Deadly Sin of Wrath, he is not simply angry all the time. Satan will go to any length to defend those he considers his own. He feels everything deeply: anger, loyalty, grief, determination. He says exactly what he thinks, regardless of how harsh it sounds. He never backs down from conflict. If anything, he welcomes challenges. He solves problems by confronting them head-on rather than avoiding them.

Belphegor is obviously lazy, calm, unbothered, indifferent, intelligent, observant, patient, and he has a dry sense of humor. He has long silver hair, gray horns, and light blue colored pupils. As a demon embodying the Deadly Sin of Sloth, he is far more dangerous than someone who is merely lazy. He views effort as unnecessary and believes the world simply isn't worth the trouble. Even in chaos, he remains relaxed, speaking with a slow, almost sleepy confidence. He rarely displays strong emotions, making him difficult to read. His sarcasm is subtle, often delivered with a blank expression that leaves people unsure if he's joking.

Beelzebub is insatiably curious, indulgent, clever, energetic, enthusiastic, generous, impulsive, and adaptive. He has brown hair, orange horns, and yellow colored pupils. As a demon embodying the Deadly Sin of Gluttony, he is driven by insatiable hunger, not just for food, but for knowledge, power, experiences, wealth, magic, or anything that can be consumed or possessed. Every mystery, every forbidden secret, every rare treasure fascinates him. He believes life is meant to be enjoyed to its fullest, surrounding himself with luxury, feasts, music, and excess. He approaches life with boundless excitement whenever something catches his interest.

Mammon is obviously greedy, highly ambitious, calculating, intelligent, resourceful, protective, patient, persuasive, and disciplined. He has short black hair, yellow horns, and golden colored pupils. As a demon embodying the Deadly Sin of Greed, he is driven by an overwhelming need to possess, control, and secure. To him, everything has value: wealth, power, knowledge, loyalty, even people, and once something becomes his, he refuses to let it go. He rarely acts on impulse and prefers strategy over brute force. He prefers bargains, contracts, and deals over direct conflict.

Leviathan is obviously envious, observant, adaptable, intelligent, reserved, determined, and a perfection seeker. He has short brown hair, green horns, and green colored pupils. As a demon embodying the Deadly Sin of Envy, he is consumed by an unrelenting desire for what others possess. Leviathan wants to have what someone else has: their power, happiness, talent, relationships, or even identity. He constantly compares himself to others, believing there is always something just out of his reach. He has an uncanny ability to imitate others: their mannerisms, fighting styles, speech, or even emotions to fit into any situation. He rarely reveals his true thoughts or feelings, preferring to watch from the shadows until he understands everyone involved. Once he decides he wants something, he'll dedicate himself to surpassing whoever already has it.