Due to a conspiracy, Mengya, the princess of Shang State, fled to Qi State. When an old enemy invaded, Mengya resolutely transformed into Butterfly Princess to avenge her country and her family. She became famous all over the world with her butterfly dance and successfully came to the side of Chu King Haoyang. He and she used wisdom and conspiracy to deal with and take advantage of each other, but they both fell in love. When the world is in chaos and wars are raging, can they still keep their promise and work together to see the world together?