Hell-Lord commands the Hell-horde army as demonic king, sporting an intimidating visage with lilac skin, purple markings, glowing red eyes, a third eye on his forehead, pointed ears bearing three earrings each, sharp fangs, and a long black beard. His attire consists of a dark cloak with crimson drill-like protrusions mimicking horns, dark shorts secured by a skull buckle, and no shoes—leaving his chest exposed.
Despite waging war against humanity and maintaining a fearsome exterior, he harbors unexpected traits. Hell-Lord openly admires Japanese pop culture, including anime, voice actors, conventions, and mobile games like "Mobile Cavalry Soul Cross." He enthusiastically consumes beer and reacts intensely to improper pouring techniques. Though he professes disdain for humans, he displays leniency—sparing the human knight Louch Brittan after a failed rescue and bonding over shared otaku interests. He routinely ignores militarily vital secrets from the captured princess for personal reasons like cram school schedules, fear of catastrophic weapons, or backing a shadow ninja’s career switch to writing.
As a commander, he champions fairness and work-life balance for subordinates yet judges harshly in professional contexts—denying promotions to junior torturers or questioning their competence. His combat skills are formidable, wielding mana-based fire and electricity, near-impenetrable magical shields, and physical strength that shatters boulders. He remains susceptible to mundane ailments like mouth ulcers or colds. In combat, he effortlessly crushed the Black Monarch, blocking a laser blade barehanded before overwhelming him.
His private life reveals modesty and devotion. Residing in a city apartment rather than a palace, he lives with his housewife spouse Lulune and daughter Mao-Mao, who attends a standard demon kindergarten. Hell-Lord shares domestic duties, relieving Lulune by handling evening chores. He indulges Mao-Mao’s every whim, joins her kindergarten events, and celebrates her milestones—occasionally sparking playful rivalries, like competing with the princess for the child’s attention.