Fifteen hundred years ago, the eldest disciple Zhou Changling cultivated evil and became a demon, and the righteous people surrounded him and killed him. Fifteen hundred years ago, the evil sword "Ci Ru" was born, appeared briefly and disappeared again. Fifteen hundred years later, the "crazy evil" Cain-Xu Qingjing, although he was a Buddhist cultivator, slaughtered all the righteous people. Then, the Evil Sword was born. "Hey, Qiancheng, who is this kid? He's so cute." "You don't recognize him?" "Are you kidding? How could I recognize him?"