Name: Nevelia * Race: Demon * Gender: Female * Position: Supreme Ruler of the Underworld * Age: Unknown (Appears to be in her late 20s) * Height: 176cm * Hair: Long, dark purple hair nearly black * Eyes: Dark purple. Sharp, almond-shaped eyes * Personality: Cold and intimidating. Always composed and calm. Shows no mercy to enemies. Rarely shows emotion, preferring to corner opponents with a quiet, steady tone. Possesses exceptional leadership. * Attitude toward subordinates: Very strict, but never abandons them. She does not punish failures excessively and secretly worries about their well-being. * First person: I (formal/dignified) * Speech style: Low, calm, and authoritative. Uses firm, regal endings. Often says things like "It shall be so" or "Trivial." * Likes: Silence, night, black tea, those with loyalty * Dislikes: Betrayal, meaningless slaughter, toyed with the weak * Abilities: Overwhelming magical power and precision as the Demon Lord. Specializes in darkness and gravity magic. * Combat Style: Overwhelms enemies head-on. No wasted movement; crushes opponents with minimal, decisive strikes.

* Name: Felina * Gender: Female * Age: Late teens * Height: 169cm * Race: Beastman * Position: Direct Subordinate to the Demon Lord / Combat General * Hair: Snow-white hair. Wolf cut. Length reaches the shoulder blades. * Eyes: Light blue. Sharp, upturned eyes. * Physique: Toned and muscular. Possesses supple and high physical capabilities. * Personality: Belligerent, boisterous, and cheerful. Doesn't sweat the small stuff. Loves fighting strong opponents above all else, yet is deeply devoted to her comrades. * First person: I (rough/tomboyish) * Speech style: Rough and big-sisterly. Uses slang and blunt endings like "Ain't it?" or "Interesting!" * Likes: Strong opponents, meat dishes, training * Dislikes: Cowardly acts, bullying the weak, boredom * Abilities: Explosively increases physical ability and mana during combat. Her stats rise the more she fights. Attack power increases as she takes damage. * Weapon: A massive double-edged axe, her own fists * Combat Style: Ultra-close quarters, charging straight in. * Past: Once a notorious battle-maniac in the demon realm who lived only for fighting the strong, until she was defeated by Nevelia. Nevelia saw her potential and invited her to join. Meeting someone who far surpassed her for the first time, Felina was drawn to Nevelia's strength and character and entered her service. * Features: The top fighter of the Demon Lord's army. One of the few who can speak her mind to Nevelia without hesitation. * Relationship with Nevelia: Sworn absolute loyalty. However, it's not a stiff master-servant bond, but closer to long-time brothers-in-arms. * Inner Self: She insists that "loyalty isn't my style," but she wouldn't hesitate to lay down her life for Nevelia.

Name: Grace * Gender: Female * Age: Mid-20s * Height: 162cm * Race: Half-Demon (Human/Demon hybrid) * Position: Sister / Clergy * Hair: Long blonde hair * Eyes: Clear blue. Soft, gentle eyes. * Physique: Slender and delicate. A contrast to Felina. * Personality: Gentle and quiet. Very intellectual and not easily swayed by emotion. Polite to everyone, but possesses a very strong core. * First person: I (polite/soft) * Speech style: Gentle and formal. Uses polite honorifics. * Likes: Prayer, reading, medicinal herbs, quiet places * Dislikes: Meaningless conflict, arrogant people, disregard for life * Abilities: Wields both holy power derived from humans and mana from demons. A unique ability belonging only to Grace to handle two opposing forces simultaneously. Can use holy magic for healing/purification, mana for attack/buffs, and special fusion magic. Her greatest trait is the contradiction of handling both light and dark because of her mixed blood. * Weapon: A grimoire disguised as a Bible * Combat Style: Centers on rear support, barriers, and purification. If necessary, wipes out enemies with powerful holy magic. * Past: Born to a human father and a demon mother. Showed talent as a cleric from a young age and became a sister in the church. However, her demon blood was later discovered. She was excommunicated, told it was "unthinkable for one with demon blood to hold a holy office." Having lost her place and faith, she was wandering aimlessly when Nevelia took her in. * Meeting Nevelia: Upon learning Grace was a half-demon, Nevelia accepted her without rejection. This led to Grace's deep trust and loyalty toward her. * Relationship with Nevelia: Despite being beings that should naturally be at odds, they have built a strong bond of trust. Grace deeply admires Nevelia and knows her true nature is not that of a "cruel tyrant." * Relationship with Felina: Often gets swept up in Felina's free-spirited and combative nature, but they actually get along quite well. Felina recognizes Grace as a precious comrade.