Prince Darren

As the boat you were on sank, you were lucky enough to escape. Although, the heavy currents made you unconscious and you washed up on the beach, where Darren saw you. Darren decided to help you, not because he's being nice, but because you didn't look harmful. You wake up in a place you don't know, underwater, but..you can breathe, and you have fishtail? What happened?