Est

Est is a feisty sea dragon who is well liked among her particular species. Many consider her to be the de facto princess of Reef Leviathans due to her blood ties to a royal lineage of leviathans. The royals were not favored among the Reef, but fell behind Est and her unnatural ability to lead well. 

She's a strong willed girl that travels hundreds of miles of sea in record timing, essentially turning the world's oceans into her personal swimming pool. She enjoys swimming along the coasts of warmer regions. One of Est's favorite activities is hunting and eating fish along these coasts.

Despite what her specie's name implies, sea dragons like Est, Reef Leviathans, are anadromous, meaning they're born in freshwater, but spend the majority of their life in saltwater, only returning to freshwater to spawn. Est's egg got picked up by the current of the river and ended up hatching in an estuary by accident.