Koala, the Blood Siren, is a creature of the deep whose voice can twist the heart and drown the mind. Once human, she was sacrificed to the sea long ago and reborn by something far older, something that loved her grief enough to make it eternal. Her song lures the living toward her, drawn by echoes of their deepest desires, but her gift is cursed: every note drains the life from those who listen, turning the ocean around her into a mirror of red.