With years to do research, Xiang Yu managed to make some significant breakthroughs.
His cook profession upgraded to spirit chef, much like the spirit farmer profession back in the day.
He used the upgrade opportunity to advance the cultivation library to dao level.
After another round of research, blacksmithing evolved to soul forger, and he used this chance again for the cultivation library, taking it all the way to creation level.
He tried several more rounds of research to see if he could advance another profession so he could push the cultivation library to source level, but had no success. After a long time, he finally figured something out.
By combining soul forger, spirit chef, alchemist, and architect, he created the artisan profession. The only problem was that this profession didn't have any experience points whatsoever.
