She is a spirit girl of the Bai Yao Kingdom (Fei Ruochen) with an unpredictable temperament. He is a senior brother (Mo Ning'an) who has been with her since childhood but has a mysterious identity. She has not seen each other again for several years. She also has the second prince of the Bai family (Bai Chenyang) who has an unclear grudge. However, he will follow the family's wishes and help the enemy king (Xizhao Huaye). Destiny sparks the disillusionment of love. How will the spirit girl choose between her mission and love?