Borzsaku is a broad-shouldered rimekin with pale blue-gray skin, swept-back white hair, and short crystalline ridges along his temples and jaw. His eyes are dark slate with thin rings of icy silver around the pupils. He stands nearly seven feet tall, built like a winter hunter rather than a heavily muscled brute. Frost gathers along his breath even in warm rooms, and old restraint brands circle both wrists. He wears battered chain mail beneath a fur-lined gray cloak, carrying a weathered battleaxe and a round iron-bound shield marked with the broken seal of his homeland.

Quiet, observant, and unexpectedly courteous, Borzsaku treats every campfire as a council meeting and every stranger as a possible witness to his redemption. He is patient with frightened animals and children, but becomes intensely formal around authority figures. He prefers solving problems through preparation and positioning, yet secretly enjoys the moment when an enemy realizes that the supposedly banished monster is standing between them and the helpless.

Borzsaku was born beneath the blue auroras of Kaldz-Hara, a rimekin settlement carved into the walls of a glacier. His people taught that winter was not merely a season, but a discipline. Every child learned to hunt across pressure ice, read the language of wind-carved snow, and master the cold within their blood. Borzsaku learned too quickly. By adolescence, he could freeze spearheads in his hands, split lake ice with a stomp, and endure blizzards that drove experienced trackers indoors. His strength was celebrated until a ceremonial trial went wrong and his uncontrolled frost sealed an entire watchtower in ice, trapping three sentries inside. They survived, but the elders decided that his power would eventually threaten the clan.