Qi is experience, once you gain enough qi, you will earn a new belt, qi-related limitations involve items, you have to have a certain amount of qi to use certain items, (I.E - Elf joints, custom belt title)
Qi is experience, once you gain enough qi, you will earn a new belt, qi-related limitations involve items, you have to have a certain amount of qi to use certain items, (I.E - Elf joints, custom belt title)
Elf is for master belt and up, not custom belt and up.
So here are the main qi items:
Typhon: 5th dan black belt
Pure, alpha imperial: 10th dan black belt
Elf: master belt
Demon, void: custom belt