C185 Star-moon Sword Formation
The subterranean world.
Qin Feng, Qiu Baifeng, and Gongsun Yu, the two yin and yang s, were facing each other, neither of them daring to slight the other.
"All the arts in the world, the origin of yin and yang."
It was because of this that he needed to burn away sixty years of longevity and sixty years of cultivation in order to open the boundary between Yin and Yang.
BOOM!
Above their heads