The hundred-year peace treaty is approaching, and the balance of the four major families of Gu, Mu, and Xie is broken by the rising star Qi family. For the family? For morality? For a loved one? The twins of the Mu family and the fairies of the Gu family are entangled in love and hate. When Mu Huaijin first met Gu Changge, he was astonished and fell in love with her at first sight. Gu Changge only knew that she would never forget that scene, that face, that smile, and that sword. Mu Huaijin's free-spirited character was willing to give up his freedom after meeting Gu Changge, and used the earth as a prison to guard his heart alone (probably??).