The toxic fog drifting through Medicine King Valley was lethal, yet this intensity posed no threat whatsoever to Fang Yan.
Seeing that Jiang Yu's lips on his shoulder were beginning to turn purple, Fang Yan shook his head, raised a hand, and enveloped her within a layer of spiritual energy.
Protected by this layer of spiritual energy, Jiang Yu naturally remained unharmed by the toxic fog.
Chapter 176