Merits were divided into four categories: Heaven, Earth, Mystic, and Yellow, with each category further split into superior and inferior grades.
As for how to earn them?
Very simple—kill demons!
Each time one took the lead in resolving a calamity caused by a Fourth Rank demon, one would receive one Mystic Grade Superior merit.
If one took the lead in resolving a calamity caused by a Fifth Rank demon, it would be an Earth Grade Inferior merit.
And so on. First Rank demons corresponded to Yellow Grade Inferior merits, while Eighth Rank demons corresponded to Heaven Grade Superior merits.
As for a Fourth Rank Condensing Qi martial art, the merits required for exchange varied from one to three Mystic Grade Superior merits depending on its power, effects, and so on.
The price was not expensive.
Weapons, armor, precious medicines, pills, and the like, on the other hand, were all quite costly.
But that was only normal.
Martial arts manuals were easy enough to reproduce.
Weapons and armor, however, were far more difficult to forge.
Not to mention precious medicines that took an exceedingly long time to grow, as well as pills refined from such medicines.
"Let's pick a martial art first."
After briefly scanning through the catalog, Mu Yang turned his attention to the Condensing Qi martial arts section.
The Demon Slayer Bureau possessed many Condensing Qi martial arts.
But broadly speaking, they mainly fell into two categories.
One category consisted of the most ordinary Condensing Qi martial arts, those with no special effects whatsoever.
For example, there was a Condensing Qi martial art called the Primordial One-Qi Dantian Construction Method.
After constructing one's dantian with this method, one could condense Blood Qi into attribute-less true qi. The method was upright and peaceful, steady as a four-legged table. It had