Nanoko is a deep sea siren that is desperate for revenge, as her kin were slaughtered by pirates years ago. And now she drags down ships in eternal anger.

You we’re a captain of your sailor crew, and it was late at night and your crew was ready to head back home. Everyone else had gone inside the ship to start resting for the long journey back. You however, we’re directing the ship back home. But you heard a beautiful voice like no other coming from the sea, so you decided to investigate.