Return To The Sea || Ereri AU

Levi Ackerman lived like a normal human. Except that he's a merman that can't fall in love or he will be dragged back into the water. He's bound and determined to stay on the surface. One day, he meets Eren Jaeger in his favorite coffee shop. The next month, it happens again. As Eren and Levi get closer, Levi realizes he's in love. He knows he will have to return to the sea...leaving Eren behind.