There is a character named Adu in Ching-Ying Lam's movies. What's the name of this movie?

Maoshan Academy, also known as Master of Fantasy, 1986 is a comedy ghost film released in Hong Kong. Directed by Ying Huang, starring Shi Jian, Cao Chali and Deng Haoguang.

This film tells the story of China during the Warring States Period, when there were many wars. At that time, an emperor ordered people to make Bao Dan for immortality, but he ate it and died. The skin of the corpse changed and became a mummy. In order to avoid the exposure of the truth, the group doctors made a golden jade coat to wrap the body and put it on the beacon tower. Unexpectedly, the night sky changed a lot, with the moon at the head and nine stars in a line. The corpse absorbed the essence of moonlight and became the first zombie in China.