What did the Han family in Dazhaimen do?

It's Han Rongfa, not Han Defa. Han Rongfa in the TV series "Da Zhai Men" was cheated by Gui Wu, pretending to be a descendant of Han Ye who was killed instead of Bai Shu, and went to the White House to cheat on food and drink. His second grandmother, who doesn't know the truth, hesitates.

Fortunately, the insider Zhu Shun exposed him and sent him to prison. Han Rongfa, who has been out of prison for several years, has never changed his mind. He also colluded with bandits to steal the White House, and fell to his death while running away. Damn you.