Doupo Cangqiong 4th Season Ep 21

To awaken his teacher Yao Cheng, Xiao Yan travels to the capital for a meeting of the pill masters. His power was immediately noticed, people who wanted to use it, but at the decisive moment Xiao Yan still becomes a champion and defends the honor of the empire. But Xiao Yan is waiting for a meeting, for which he has been preparing for three whole years...