Styled Zidan, army commander and Cao Cao's distant relative adopted after his father died in battle. He controls troops and the palace guards. Greedy and easily bribed, he was won over by Cao Pi's promises of supreme generalship and shared spoils. He also revealed that generals Zhang Liao, Yu Jin, and Xu Huang would support Cao Zhi, and Zhang He and Le Jin would not back Cao Pi.
