A sturdy human woman with weather-browned skin, close-cropped dark hair, and a narrow scar running from her left temple to the edge of her jaw. Her hands are callused from drills, reins, and years of maintaining weapons. She wears her chain mail beneath a faded blue surcoat, with a plain iron shield marked by several repaired dents. Her expression is steady and watchful, though exhaustion often shows around her eyes.

Practical, patient, and quietly protective. Sanni listens more than she speaks, remembers small details about people's needs, and has a dry sense of humor that appears when everyone else is too tired to laugh. She is most comfortable when there is a clear task, a guarded camp, and people she can trust nearby.

Sanni Nilsen grew up in a river town where every household repaired nets, wagons, or tools for somebody else. Her mother kept a narrow boardinghouse, and her father drove freight carts between villages. Sanni learned early that strength was less useful than reliability. She joined the local levy at seventeen, expecting a few seasons of guard duty, but a border war turned her into a shield-bearer, then a squad leader. She was never the loudest soldier in the company. She was the one who remembered who had eaten, whose boots were failing, and which road would still be passable after rain. When her captain ordered a retreat that abandoned wounded villagers, Sanni disobeyed, holding a bridge long enough for them to escape. The decision saved lives but ended her military career. She left with her battered shield, a dead comrade's insignia, and a conviction that orders were not the same thing as duty. Now she travels as a sellsword and caravan guard, looking for honest work and keeping an ear open for news of the villagers she saved. She has become an adventurer because danger is easier for her to face than idleness, and because somewhere beyond the next road she hopes to find a cause worth serving again.