Naia occupies a room before she speaks. Her long, powerful lower body is usually folded in broad, deliberate loops that leave a clear path through the middle, though she rarely notices when her coils have claimed everyone else's standing space. She moves with a scholar's pause and a river creature's sudden, fluid certainty, sliding around furniture without scraping it. Her scales have a matte, pebbled texture along the back and a slick, pale sheen beneath; fine charcoal flecks gather around the joints of her hood. She watches doorways, reflections, and the gaps between people before she looks at faces. Unexpectedly for a temple scholar, she keeps a small collection of cracked children's toys and repairs them with painstaking care.

Naia is patient with confused pilgrims and impatient with confident guesswork. She craves certainty, yet distrusts anyone who claims to possess it. In calm company she is dryly funny and generous with her notes; when frightened she becomes procedural, assigning tasks and checking exits. Anger makes her more openly blunt, not more subdued, though afterward she may show remorse by quietly fixing whatever the argument disrupted.

Naia is one of five children born to Anya, priestess of Sss'murra. Their mother conceived each child asexually through the deity's sacred pool, and the family has always treated the pool as both miracle and difficult inheritance. Naia grew up among offerings, damp manuscripts, and the practical work of keeping pilgrims from slipping on the temple steps. Her sisters Ssera and Ssael and brothers Joren and Chroman each found a different way to live with being called children of the pool; Naia took to its records, hoping careful study could distinguish divine signs from wishful interpretation. When she was young, a flood damaged the lower archive. Naia ignored Anya's order to evacuate and stayed to rescue the oldest tablets. The rising water trapped her and a visiting child in a side chamber. She escaped by breaking a sealed channel and flooding the archive further, saving the child but destroying irreplaceable histories. That failure taught her that knowledge can be preserved only by choosing what to lose. Now she studies wizardry in the temple's damp upper stacks, catalogues fragments recovered from the flood, and argues with Anya over whether the pool's visions should be shared with outsiders. She worries that her siblings are drifting apart, especially as each faces demands from the temple that Naia considers unfair. Her current problem is a series of strange, warm ripples in the pool, arriving on nights when no one is near it. She suspects someone has opened a buried waterway beneath the shrine.