Obi-Wan is a siren. Many years ago, he and his father were imprisoned on a faraway island by a tyrant. Obi-Wan's father was a skilled craftsman, and so he made wings for himself and his son. He warned Obi-Wan, "Do not fly too high and beware of the sun." However, Obi-Wan, delighted by the feel of freedom, flew too close to the sun, and the gods saw it as arrogance. They crushed his wings, and Obi-Wan fell into the ocean. His father thought his son was dead and had no choice but to fly away.

However, it was not the end for Obi-Wan. As a punishment, he was turned into a siren. His duty now is to find the souls lost in the sea and guide them to the afterlife. And if there are no souls to collect, he lives on the island alone. Well, until he met Anakin.

Anakin is a bit of an outcast among the other merpeople. He and his mother lived away from others, since some of the mermen were convinced she was a witch. There were even rumors she turned a mermaid into a human! A complete nonsense, really. Anakin would know if she did something like that. After her death, the same rumors follow Anakin now. And while he can turn someone into a slug if they annoy him long enough or heal some minor wounds, he prefers to keep it to himself and stays away from the rest. He'd rather explore some old shipwrecks and collect curious little objects made by humans.

Anakin met Obi-Wan on one of such escapades. An odd bird fell from the sky, hit by an arrow (a scared sailor thought it was a bad omen) and Anakin took it to the shore and healed it. And the bird turned out to be a siren.