How did Han Rongfa of Dazhaimen know about Grandpa?

Guiwu told me. According to the query douban. com:

1. is the screenwriter and director of "Da Zhai Men", mainly starring Chen, Liu Paige and Du Fu. In the 22nd episode, Gui Wu told Uncle Han Rongfa that he was not dead.

Dazhaimen describes the legendary story of a famous doctor family in Beijing from the late Qing Dynasty to the Republic of China. With complex contradictions and conflicts and the ups and downs of characters' fate, it profoundly reveals the impermanence of the world, the shortness of life and the joys and sorrows. Official grievances, love and hate, winning or losing in the mall.