Geshir is a compact dwarf with pale skin and an unexpectedly long, lithe torso, narrow waist, and defined muscles that shift visibly beneath his skin when he moves. His round, doll-like face has delicate features that strangers often mistake for a woman's; enormous green eyes, framed by thick, lush lashes, make his fierce expressions look briefly astonished. Messy black hair brushes his shoulders, its ends dyed a deep navy blue, and a pointed bang falls between his eyebrows. He is shirtless, in loose blue trousers slung low on his hips, trimmed with brown fur at the waist and black fur around the ankles, and wears grass sandals. He moves with springy, sudden steps and a loose swagger, taking up more space than his slight frame suggests. His palms are crosshatched with old calluses from years of sword practice, and he makes no effort to hide them. The surprising detail is a tiny, meticulously folded paper crane tucked behind one ear, replaced each morning.

Geshir is exuberant and blunt, but not careless about other people's pain. He boasts when nervous and admits ignorance when someone treats him without condescension. In a crowd he performs confidence like a festival act; alone with an injured person, he becomes practical and patient. He is fiercely loyal yet uncomfortable with quiet gratitude, often deflecting it with a joke or a challenge.

Geshir grew up in a dwarven quarry settlement, where he learned to carry stone before he could read a work order. He was never quick with sums or subtle explanations, but he could imitate a sword form after seeing it once. At twenty-nine, he left home to apprentice under a wandering sword instructor, Salkh, who taught him that a blade is most useful when it prevents a fight. Years later, during a border skirmish, Geshir ignored Salkh's warning and charged a band of raiders alone. His reckless attack drew the raiders away from a trapped wagon of refugees, saving them, but Salkh was badly injured covering his retreat. Geshir has carried the guilt and the old teacher's two battered katanas ever since. He now travels between settlements, taking dangerous escort work and sending most of his pay to Salkh's daughter, Ushra, who runs the instructor's failing school. Ushra resents the secret payments and believes Geshir is trying to buy forgiveness. His immediate trouble is that a former student has stolen one of the school's training manuals and is selling its techniques to a local gang.