Ji Yun He is a powerful and talented demon master living in Demon Valley. She loathes the deep dark secret that restricts her from exploring the world at her leisure.
Changyi is a merman who appears in the Valley, courtesy of the cruel Princess Shunde. Her Royal Highness commands Yun He to make the merman speak human words, grow human legs, and be loyal. But there is a catch! Yun He must