The heroine, Mu Xiyuan, is the Rain God of the Ninth Heaven. By order of the Heavenly Emperor, she descends to the mortal realm and becomes Qin Chaoyin, the legitimate daughter of the Marquis of Huaiyang, to help the mortal emperor Qi Xiaoyi save humanity from calamity. Along the way, she overcomes countless trials and dangers, with plenty of amusing moments along the way. For his service in saving the people alongside the Rain God, Emperor Qi Xiaoyi is elevated to a high god, and he and Mu Xiyuan are finally reunited in the celestial realm.
