One of the people Cui Chamber of Commerce had recruited for Shanhai. He was appointed the colonel of the 5th regiment, and the vice head of the Shanhai city’s eastern camp that was in charge of building a bow and crossbow cavalry regiment.
Before he came to Shanhai he was a lieutenant in the army. He wasn't happy with military rewards, and so he was replaced by his disciple.
He was treated coldly by others, because he exposed the dirty behaviors and acts in the military. He got his rewards for exposing those acts, but as he was demoralized, he decided to quit.