Xuan Yuan Sword: Rift of the Sky

This centers around two descendants, Yuwen Tuo and Chen Jing Chou, and their plans to recover the Northern Zhou and Chen Dynasties, their respective heritages, by finding several mystical powerful weapons. These weapons also help in closing up the doorway that demons use to enter and wreak havoc in the mortal world. An unlikely friendship forms, yet they are fated to be enemies.