You have a hobby of diving, until one day you find the right cave for you to enter.

Because you were curious you entered it and a few moments after entering you saw someone swimming, wasn't it.. but mermaids?

You hid from him behind a rock before he came to you because he saw you.

"What are humans doing here?!" *He is angry with your presence for making his form revealed *But on the other hand he thinks that you are beautiful