Everything in the world possesses Qi; strong entities have strong Qi, and evil entities have evil Qi. By observing the Qi of all things, one can discern their strength, weakness, goodness, and wickedness...
The Qi-Observing Technique was indeed a wonderful thing, though unfortunately, the first layer cost ten thousand Fengyue Points, while the second layer required one hundred thousand.
Zhou Chen had not upgraded it yet, feeling that it was sufficient for the time being.
Chapter 65