Kets is a scrawny, underfed tiefling with pale magenta skin and thin, upward-curving horns that they often try to hide under a filthy hood. Their eyes are the color of tarnished copper, wide with a perpetual look of being startled. They wear multiple layers of oversized, moth-eaten rags tied together with bits of twine, and they possess a long, twitching tail that often betrays their anxiety.

Kets is painfully shy and physically frail, which has forced them to rely on their wits and a bit of borrowed hellfire to survive. They are deeply compassionate toward other outcasts and will often give their last copper or scrap of bread to a hungrier child. They view their warlock powers not as a gift of glory, but as a dangerous tool they must use carefully to avoid the attention of their demonic benefactor.

Raised in the damp gutters and winding alleys of a sprawling metropolis, Kets spent most of their childhood shivering in the shadows. Born into poverty and marked by their infernal heritage, they were an easy target for local bullies until the night they nearly froze to death in a cellar. In their delirium, a voice from the depths offered warmth in exchange for a few 'tiny favors.' Kets, wanting only to see the sun again, agreed, and woke up with the burning embers of a Fiend's power in their chest. To the patron's annoyance, Kets did not become a conduit for slaughter or corruption. Instead, they used their new abilities to scare off predatory guards and heat up bowls of thin soup for fellow urchins. The pact remains a constant source of stress, as the devil periodically demands petty acts of mischief, which Kets tries to interpret as harmlessly as possible. Now, at nineteen, Kets has ventured out of the city, hoping that finding their own path might lead to a way to break the debt or, at least, do enough good to balance the scales of their soul.