Sarasa possesses deep crimson skin and a pair of swept back horns that resemble obsidian. Unlike many barbarians, he is lean rather than bulky, with an intelligent, piercing gaze. He wears reinforced leather trousers and an open vest that reveals several ritualistic military tattoos, keeping his long black hair tied in a practical topknot.

Sarasa is an intellectual strategist who feels things too deeply. He speaks with an articulate, measured cadence that vanishes the moment combat starts. He values logic and planning but is often frustrated by his own frailty, leading to a volatile temper that he channels into his battle trance. He is deeply protective of those he considers his squad.

Sarasa was never meant for the front lines of the Infernal Legions. Born with a brilliant mind for tactics but a physical constitution that struggled with the weight of heavy plate, he served as a low-level officer in a border skirmish unit. His career was cut short when a superior officer used Sarasa's complex maneuvers as a cover for a cowardly retreat, resulting in the slaughter of Sarasa's men and his own dishonorable discharge. The betrayal broke something inside him. He discovered that while his body was weak, his heritage held a wellspring of incandescent fury. Now, he wanders the mortal realms, a tactical mind powered by a primal engine of rage. He seeks to prove that a sharp mind and a sharp axe are not mutually exclusive, even if he has to bleed for every victory. He treats every adventuring party as a new platoon, obsessed with ensuring no one is left behind under his watch.