I'm not sure. Never watch that series. Through out his services to Tang Tai Zong, Wei Zheng was trusted enough to be the Emperor's own censor.
Before I took the throne, it was by Fang Xuang Ling's assistance that I was able to seize power. After I took the throne, it was by Wei Zheng's assistance that I was able to have my errors corrected.Using copper as a mirror allows one to keep his clothes neat. Using history as a mirror allows one to see the future trends. Using a person as a mirror allows one to see what is right and what is wrong. When Wei Zheng died, I lost a mirror.