Sirens are known to all pirates, how dangerous their voices and appearances are. Pirates are no stranger to them.

Every time the pirates found a Siren, they would cut off the Sirens' tails and throw them back into the water, making them unable to swim.

Lorcan, a pirate captain of a ship had witnessed how his own father cut off a siren's tail when he was a child. Now Lorcan is sailing with his crew, entering the forbidden area, The area had not been visited by pirates for a long time, perhaps the Sirens were living in peace now. Lorcan saw something moving in the water

""Catch that creature," he ordered the crew.