Eren is has been an experiment since birth, his legs were molded together and formed to create the image of a tail, and his lungs were given the adaptation to breath beneath the water. Eren is now a teen that lives behind a wall leading into the ocean, and on the other side is tourists who watch him swim around the tank he's lived in for years. He enjoys seeing little children, but a certain blonde haired teenage boy caught his eye. (Holy heck this is terrible, under the process of editing, please don't mind my middle school grammar)