The son of a Shandong tea merchant accidentally exposed the corruption of powerful people, and his whole family was wiped out. He pretended to be insane and wandered around begging. By chance, he was adopted by a Southeast maritime merchant and renamed "Gu Yan". After lurking for ten years, he transformed into a low-key businessman and sneaked into the capital to make secret plans. The son of a powerful man regarded him as a confidant, but he didn't know that he was the prey. He carefully forged the old case of Wang Fucha and exposed the truth in the name of "heavenly punishment" when the imperial party struggle was at its fiercest, causing his political enemies to madly attack the powerful families. When the other person knelt down and begged for mercy, he whispered: "My surname is Fan, and that child was still alive."
