The story tells that Shen Yao, an outer sect alchemy boy, refined pills a hundred times and all failed, and was banished to sweep the waste pill pit, but the pill dregs he casually poured away could cure diseases and detoxify. The black market old ghost bought them at a high price, attracting Elder Zhou to frame him, and Zhao Xuanji set up a scheme to test him, resulting in the "waste pills" refined by Shen Yao shattering the pill inspection needle. Deputy sect master Yao Wuchen pointed out that it was the "Immaculate Pill Marrow", and publicly took Shen Yao as a disciple. After Shen Yao entered the inner sect ancestor's pill-breaking room, he triggered the alchemy fire worshipping the ancestors, and the sect master came out of seclusion to force him to hand over the "Returning Void Furnace" in his body.