Kaijin is a tall elf with the lean, corded muscle of a professional soldier. His silver-blonde hair is kept in a practical top-knot, and his skin is tanned and scarred from years in the sun and on the battlefield. He wears a suit of chain mail that is meticulously maintained despite being dull with age. A heavy green cloak with frayed edges is pinned to his shoulder with a brass eagle insignia.

He is a man of few words and deliberate movements. Kaijin is weary of grand speeches and military bureaucracy, preferring the quiet camaraderie of a campfire. He holds himself with a rigid posture that betrays his training, but his eyes often drift to the horizon, searching for a peace he hasn't yet found.

Kaijin served for decades in the border vanguard of an elven principality, rising to the rank of sergeant. He was a loyal soldier until his unit was ordered to purge a village suspected of hosting a human rebellion. Recognizing that the targets were civilians and not combatants, Kaijin defied his superiors. He secured the village's escape before deserting his post and fleeing into the wildlands. He now lives as a wandering blade, using his military prowess to protect those the law has abandoned. His desertion is viewed as a mark of shame by his kin, but to the people he has saved, he is a silent guardian. He travels far from the elven forests, knowing that his old unit still carries a warrant for his arrest. He avoids the comforts of high society, finding more truth in the sharp edge of a sword than in the promises of lords.