Meng Xi returned to Qingyun Sect to look for his master, but unexpectedly learned from Pei Chu that his junior sister Su Su was dead. Shocked, she entered the forbidden area of the back mountain and found out that Su Su was framed by Lin Yao, had the golden elixir removed by the sect, and was imprisoned in a cold cave to die tragically. Meng Xi was furious and vowed to avenge Su Su. She first exposed Lin Yao's crimes in the Discipline Hall, and then launched a crazy revenge. Fight against enemies such as Lin Yao and Wei Xing. He even faced off against the incarnation of Heaven who had tampered with the laws. Faced with Tiandao's deal, Meng Xi refused to compromise and insisted on taking revenge with his own hands. In the end, she succeeded in making everyone who hurt Susu pay the price.