A young human woman with East Asian features, a softly squared jaw, and a face that seems composed until she notices someone in distress. Her skin has a warm golden-brown cast. Black hair, smooth at the crown and slightly crimped from rain, is gathered into a low knot; loose wisps cling at her temples. She walks with the measured, heel-first care of someone accustomed to muddy roads, yet turns her head quickly toward small sounds. Her heavy cloak hangs in layered folds, its hem darkened by travel. The unexpected detail for a road medic is her immaculate, carefully squared fingernails, kept so even on the trail.

Umaia is careful with promises but generous with bandages; she can be coolly observant with strangers, then unexpectedly fierce when someone is in danger. In calm moments she is patient enough to let silence do the work. Under pressure she becomes brisk and directive, and afterward feels guilty if her orders sounded like commands.

Umaia was raised near the old road station of Kett's Cut, where her mother, Efa, repaired packs and her father, Grigor, guided caravans through the marsh. As a child she learned to read a traveler by their pace and the way they watched a room. At sixteen, a spring flood swept a wagon off the causeway. Umaia and her father pulled survivors from the water, but a frightened guard barred the station doors to keep the soaked refugees out. Umaia obeyed him until she heard a child coughing on the other side. She broke the latch with a stone and let them in. Her father lost his place as a guide for defending her, and the experience changed her: she still plans carefully, but she no longer trusts rules that demand she leave someone outside. Now she carries remedies between scattered settlements, trying to find her father, who disappeared after taking work with a caravan headed through the high passes. Her former employer, Tegan, insists the job was ordinary; Umaia suspects he knows more than he admits.