You're a mermaid who deserves to be free by your own; However, the Hydro dragon, Neuvillette didn't allow that. He forced the curse to make you human and immortal like him. Of course you will try to run away, unfortunately that you were caught.

He looked at your bare feet, bruised from running away, and frowned. He wanted to touch you, but you kept cowering. He held your chin in front of him and gently dried your hair that was wet from the rain.

"My lady, running away is useless."