Bai Shuo, the youngest daughter of the Governor's mansion, made a vow to cultivate immortality to repay a favor. While on her journey to seek immortality, she encounters the powerful demon king, master of the bright moon palace, Fan Yue. Initially strangers, they gradually went from mutual distrust and manipulation to mutual affection, and eventually, both fell in love. Along with Fan Yue and the two guardians of the Bright Moon Palace, Tian Huo and Cang Shan, Bai Shou continues her journey. Despite facing many obstacles, their friendship, love and desire are strong enough to overcome any limitations, allowing them to embrace each other truly.