Zarin is a broad-shouldered tiefling with ash-gray skin veined by fine cracks like cooled lava. In darkness, those fissures give off a faint violet glow. His backward-curving horns are thick and bull-like, one broken a third of the way down and sealed with an old scar. His eyes are black pools with a pinpoint of violet fire at the center, and a broken-circle brand scars his forearm where his power first turned on him. He moves with eerie silence for someone so massive, and his long tail often coils around his wrist when he is thinking.

Quiet, watchful, and unexpectedly gentle with the frightened, Zarin presents as a wall of muscle until someone gets close enough to hear how carefully he chooses his words. He is patient in planning but explosive in action. He dislikes waste, whether that means wasted food, wasted lies, or wasted lives. He is more comfortable in back alleys and cramped rooms than in open courts, and he prefers one honest conversation to ten polished speeches.

Zarin learned early that a body like his made people assume the worst. In the alleys and under-stairs dens where he grew up, that assumption kept him alive. He became the quiet one, the one who could slip through a crowd without a sound, the one who listened more than he spoke. The first time his infernal blood flared, the magic did not feel like power. It felt like betrayal. The burst left the broken-circle brand on his forearm and scorched every promise he had made to stay invisible. The streets turned him into a collector of debts, secrets, and lessons. He worked for smugglers, dockside fences, and anyone desperate enough to pay in coin or food, until his rage became harder to hide than his horns. When a gang tried to use him as a living weapon, Zarin answered with the kind of violence that only comes from a lifetime of swallowing fear. He left them broken and walked away with nothing but a weapon, a scar, and the knowledge that his fury was not the end of him. Now he travels where brute force can protect the vulnerable, while he searches for the truth behind the mark on his arm and the source of the power that still flickers beneath his skin.