He was born in a side branch of the Qing Dynasty clan, with distant blood and no title. He made a living by copying books from the Imperial Palace (living in a shabby courtyard and wearing old clothes). He did not belong to any camp of the Princeling Party or the Eighth Prince Party, and he had no family power to rely on. In the early days, he was the most inconspicuous "bystander" in the chess game of seizing the throne. This allowed him to escape from factional prejudices and investigate the case from a purely detailed perspective.
