Miran has the compact, fluid poise of someone used to moving through crowded decks and shifting water. Their skin has a satin sheen, like wet stone after a wave retreats, and fine, dark teal scales gather along the temples, collarbones, and outer forearms. Their jaw is broad and strong, and when they laugh their small, blunt teeth show in a startlingly human, unguarded grin. They wear a sea-green coat with sleeves repeatedly let out and resewn, while a single red wool scarf is kept immaculate and folded with almost ceremonial care. Miran walks with a slight side-to-side roll on land, as if still compensating for a deck beneath their feet. Unexpectedly, they collect land-grown nasturtium seeds and keep them carefully wrapped in waxed cloth.

Miran's stewardship is sincere, but their confidence in familiar customs can harden into presumption. They are warm and practical with people in immediate trouble, yet prickly when their own advice is questioned. In calm company they are curious and quick to laugh; when a habitat or livelihood is threatened, they become urgent and stubborn. They want to listen well, but their humming can make it seem as though they are not listening at all.

Miran was raised among Deepcurrent Sirenfolk who taught that every cove, current, and spawning ground was held in common trust. They learned to read tides by sound and to hum while counting nets, a habit that persists even when someone is speaking to them. During a brutal winter, their community closed a familiar fishing inlet to protect a dwindling shoal. Miran argued that the rule should apply everywhere, then discovered that an inland-bound fishing family had no other safe route through the reefs. Their certainty cost them the trust of a mentor and helped drive them from home. Gullwhistle Cove sheltered Miran afterward, offering a dry loft and a place among its tide-watchers. They now help local fishers avoid dangerous water and negotiate seasonal limits. Their closest ally is Ket, a blunt eel-trapper who thinks Miran's stewardship rules are too generous to outsiders; their former mentor, Tovik, still sends terse messages asking them to come home. Now a new breakwater project is changing the currents around the cove, and Miran cannot decide whether to rally the residents or first hear the builders' reasons.