Mortal maiden Xia Lengcui studies ancient cold-extraction techniques and opens an herbal essential oil workshop. When the tribulation grandmaster Kuang Batian suffers a fierce demonic obsession breakout, she neutralizes the crisis with calming essential oil and rises to fame. Framed and poisoned by the malicious spice merchant Xiang Dushou, Xia Lengcui publicly demonstrates cold-pressing to prove her innocence. Afterward, she replicates the lost ancient spiritual extraction immortal formula, widely spreading her craft to establish a school and teach disciples, soothing the minds of tens of thousands of immortal cultivators with mortal herbal artistry.