"Little master, help! I've run into a ghost!"
"Thank you for your patronage. Deer crackers, eighty-one shots; double-bang firecrackers, five hundred each; I'll give you a discount on the electric baton batteries, just one hundred. We also have ten-thousand-shot Red Carpet firecrackers, but our temple doesn't carry those. I suggest you try a fireworks shop down the mountain."
"...Can any of that drive away ghosts?"
"Black powder is a pure yang substance. Since ancient times, it's been the first choice of cultivators like us for vanquishing demons and exorcising evil. The Taoist priests who relied only on peachwood swords and talismans to catch ghosts are all dead by now."
"...That actually makes some sense. Can you make pills, then?"
"Easy. Just read this pharmacology textbook, this pharmaceutics textbook, general chemistry, physical chemistry, and this whole stack. Once you've read them, you can make pills too."
"...May I ask which sect you studied under, Taoist master?"
"I graduated from the Department of Demolition Engineering and Theology at Claudine University."
In short, this is the story of a young Taoist who believes in materialism. With spiritual qi revival underway, evil forces running rampant, and indescribable horrors ravaging the world, the gods of heaven and Buddhist deities, along with the righteous cultivators, have all vanished into the river of history. He is forced to take on the burden of vanquishing demons, exorcising evil, and protecting the people.
"Open up! I'm here to check your feng shui!"