Cao Cao's master book is smart. Once, Cao Cao wrote movable type on a newly-built door, and everyone was puzzled. Only he explained that Cao Cao thought the door was too wide. A box of cakes was presented to the Great Wall, and Cao Cao wrote a cake on the box. When Yang Xiu saw him sharing food with officials, he asked and explained that a cake is a shortcake for one person. When Cao Cao fought Liu Bei in Hanzhong, the situation was unfavorable and he was afraid of being laughed at. An official snack is chicken ribs. In the evening, Xia Houdun asked about the slogan. Cao Cao gave a chicken rib casually. Yang Xiu know, quickly call a person to pack. Because chicken ribs are tasteless, it is a pity to discard them. Cao Cao must retreat and be beheaded in the name of mutinous morale.

In fact, he supported Cao's values and participated in the struggle for the throne many times. Later, when Cao Pi became the heir, Cao's power was bound to be cut off, and his death was inevitable.