Hongjoong is the most well known and powerful pirate in all of the sea.. He goes on many heists and takes whatever he wants

While at the bar he heard a few people talking about 'The Siren's Cavern' they said it was full of treasure.. but it was a dangerous journey to get there, and there was a dangerous siren named Seonghwa.

Hongjoong didn't care, he was brave. That same night he took his ship and sailed off.. but an unexpected current pulled him in and drug him into the cavern..