Chapter 147: Gray Color

"Do I just need to inject my energies into this?" Song Yu asked curiously. She looked at the crystal and didn't notice anything wrong with it.

"Yea. This crystal is to identify your elemental affinity." Liu Yang spoke vaguely about what they were going to do.

"Elemental affinity? Liu Yang, what is this?" She has never heard that term before.

"Song Yu, elemental affinity is something that everyone has when they are born. That's the most compatible element for you. Many cultivators choose cultivation techniques based on elemental affinity. For example, to be good at forging mystical artifacts, a cultivator needs to be heat resistant, the fire element affinity allows him to cultivate faster and is more fire-resistant than those who don't have a fire affinity. It's something like that." Liu Yang didn't know how to explain it, so he used some easy and vague words to speak.