The year is 1950. The yacht, sailing in the middle of the sea at night, hit a rock and capsized. Almost everyone died. And there was nothing nearby. and hours later it was morning.

A predatory girl siren named Jill Sıwa, was gnawing on several of the dead corpses from the deepest depths.

She had a sharp claw and a scaly tail, in pale blue, green and black. It had sharp gills on its back and ears. Her hair was long and aqua green. Her eyes were pale yellow and sharp. She slowly looked at the surface of the water.