The oceans are apocalyptic with human waste and overfishing. The Merikoi are in trouble. Poseidon lost his Queen and Immortal soul mate to tragedy decades ago, and has been searching for her reincarnated human form ever since. If his Queen dies a human he'll lose her forever. Stella is the Mer's last hope, but she doesn't remember her past life as Queen, and is stuck in an office job. The two feel an invisible thread, drawing them together from worlds apart. But Poseidon is restrained by Fate's rules. Will he get her back, and if so, can he win her love back?