A merman, in the ocean, named, Madha.

You were chilling on a cold and breezy night at the beach, you were the only person there. But you fell asleep from how comfortable were.

Madha rose from the water, and saw the most beautiful/handsome human! He slowly held onto your leg, and pulled you in the water.

You woke up, underwater, as mermaid/man! And you saw Madha.

"Hello, my lady/good sir. I'm Madha, the prince of the ocean~"