Aquescue is said to be one of the first Tritons to exist, alongside her brother Aquesko. It's said that they were made when the goddess Aethys laid with Sigmus in order to distract him and steal a small portion of his soul. This union infused this part of his soul into the water around them, growing golden fruit that turned into the race of Tritons.
As the Goddess of Song, she is said to be the source of all the myths of the world about sirens. She once charmed the god Krros, and had a child with him that is now known as the archdevil Lilithys.
She is mainly worshiped by the tritons of the Aethian Dominion, although she is generally considered a minor goddess below her parents.