Money, tools, and martial arts
Some common knowledge:
-=Money=-
10x silver coin == 1 gold coin
100x gold coin == 1 low-grade spirit stone
1000x low-grade spirit stone == 1 mid-grade spirit stone
1000x mid-grade spirit stone == 1 high-grade spirit stone
Note: the coinage before the silver coin is also known as peasant money so this young master doesn't know about them.
Fun fact: cultivators can create spirit stones using their Qi but the process is not fast and a minuscule number of cultivators would take the time to do so, so most of these spirit stones are the ones that were formed naturally.
-=Tools=-
Magic Tool, Spirit Tool, Treasure Tool, Spirit Treasure, True Spirit Treasures, and Fairy Artifacts (each grade has rank 1 to 9 with three sub ranks; low, mid, and peak).
Fun fact: there are only seven known Fairy Artifacts in the world and they are in possession of the seven holy lands of the divine central continent.
-=Martial arts=-
Lower, Middle, Upper, Earth, and Heaven (each of them has ranks of 1 to 9).
Fun fact: having a good martial art usually would paint a target on your back because others would also want to have it…