To help Xiao Jiu survive the heavenly tribulation and successfully ascend to immortality, Master Qinghui sends her down the mountain to find a way to break through it. Along the way, Xiao Jiu accidentally saves the Lu brothers and gets caught up in disputes among the great families. Xiao Jiu has always believed she is just a cute little novice at the Qi Refining stage. Only after being challenged time and again does she discover that she has long been invincible under heaven.