Liu Shao initially leads a carefree life of a rich heiress, but accidentally gets embroiled in a battle between immortals and demons, thus unraveling the past and present romantic entanglement between her and Lu Li, a mysterious immortal.

For the happiness of being with a mysterious man for three days, the young Liu Shao traded away her destiny. Since then, she has experienced ups and downs as well as joys and sorrows alongside him. In order to protect the common people and their loved ones, they have devoted their lives to bear a promise. Can they break through fate and change the ending?—ChineseDrama.Info

Song of the Moon is directed by Lin Jianlong (Legend of Yun Xi), featuring Zhang Binbin (Love O2O, Rattan), Xu Lu (With You, Our Shiny Days), Wang Youshuo (Young Blood), Zheng Hehuizi (You Are My Glory), Wang Yilun (Love Is Sweet). Young girl Liuzue (played by Xu Lu) exchanged her life's fate for the pleasure of being with a mysterious man for three days, and since then, she has gone through a lot of ups and downs, and a rocky relationship. In order to safeguard the life of the people, to protect their loved ones, they have gone through a lot of hardships and difficulties, devoting their lives to bear the promise of the gentleman. Can they break through their destiny and change the ending?—iQ

Young Liu Shao meets a mysterious man with whom she exchanges her future for three full days of happiness. Initially, she has led the carefree life of an heiress until she became embroiled in the battle between the immortals and the demons. Her involvement leads to the unravelling of several romantic entanglements between herself and Lu Li, the cloaked immortal shrouded in mystery.—WeTV