A lean, copper-red tiefling with swept-back black horns, ember-colored eyes, and dark burgundy skin marked by faint freckles across the nose and shoulders. He wears well-maintained chain mail beneath a tabard repaired at the hem with mismatched gray thread. His shield is polished far more carefully than the rest of his equipment, bearing a simple white sun painted over an older, half-scraped sigil. He stands unnervingly still when listening, then moves with brisk, economical steps, favoring his left side when turning. His tail is usually wrapped once around his thigh when he is anxious.

Quiet, observant, and deliberately courteous, Vargan speaks to frightened people in the same calm tone he uses with officers. He has a dry sense of humor that appears without warning, usually at the worst possible moment. He dislikes being praised for courage and prefers practical questions, such as who is missing, what is broken, and where the water is.

Vargan Keresz was born in a border garrison where tiefling children were treated as omens until they proved useful. His mother served as a camp cook and his human father was a quartermaster who taught him that armies were held together less by glory than by clean bandages, counted arrows, and people who kept their promises. Vargan enlisted young, first carrying messages and later guarding supply lines through mountain passes where raiders and winter claimed more soldiers than open battle. He learned to read the mood of a camp from its silence, and to recognize cowardice not as fear, but as the decision to let someone else pay for it. During a retreat that should have ended in slaughter, Vargan found a wounded chaplain defending a company standard with nothing but a broken spear. The chaplain's refusal to abandon the fallen changed him more deeply than any sermon. Vargan carried the dying man for three days, then took up his oath before the same weather-stained standard. Now he travels as a paladin of devotion, trying to become the kind of shield he once needed. He distrusts grand declarations, especially from nobles and priests, but he believes a vow becomes holy when it costs the speaker something to keep it.