Hong Kong-made costume TV series TVB 1995.
In the Song Dynasty, Lai Chengshan, a famous geomantic master, looked for good omen for Qinhuai (the father), a local tyrant. But obviously, the Qin family is rich and heartless, and a demon minister is bound to bring disaster to the country and the people. He wanted to play a little trick in front of the grave to put an end to his arrogance, but Qinhuai was so good at chess that he made him swear to poison. If the Qin family is in trouble, the Lai family will suffer first.
Later, Lai Cheng suffered from repeated leaks, and his youngest son, Tan, was repeatedly killed. After a night of heavy rain, Lai Buyi's coffin was washed away before he died. An old dreamer (Yu Ming) rescued him and gave him a lifelong Juexue, which transformed Buyi. The old man even gave him a dragon-hunting sword and told Buyi to use what he had learned to solve the danger of life. This play is a legendary story.
If this is confirmed, please adopt it ~