Lin Zhaoxun was abandoned by his biological parents as a child. His adoptive father raised him by tending a boiler, and Lin Zhaoxun learned to do the job exceptionally well.
After his adoptive father died, Lin Zhaoxun transmigrated into the body of a little eunuch (fake) who tended the charcoal stove in the Empress Dowager's palace. He decided to make the best of things. Well, at least this was his specialty.
At a particularly tense and thrilling moment, two little fairy attendants appeared out of nowhere. They said they had descended to the mortal realm to find a furnace cauldron for their immortal venerable, and that was how they had found Lin Zhaoxun. Having only ever read Journey to the West, Lin Zhaoxun figured the job sounded right up his alley and readily agreed.
As soon as he entered the Xubai Sect, Lin Zhaoxun made his way to the alchemy chamber and began his life tending a