During the Spring and Autumn Period, there was a businessman in the State of Chu who specialized in selling jewelry. On one occasion, he went to Qi State to sell jewelry. For the sake of good business and best-selling jewelry, he specially made many small boxes with precious wood, which were beautifully carved and decorated, so that the boxes would give off a fragrance, and then put the jewelry in the boxes. A man from Zheng saw the box containing the orb exquisite and beautiful. After asking the price, he bought one, opened the box, took out the treasure inside and gave it back to the jeweler. After repeated orders, Sun Wuliu lived in the State of Wu, and the King of Wu wanted to test Sun Wu's military talents, so he handed over 180 young ladies-in-waiting to Sun Wu for practice. Sun Wu divided the ladies-in-waiting into two teams and made the prince's favorite concubine the captain. After Sun Wu confessed the password to the ladies-in-waiting, he drummed and commanded. The ladies-in-waiting burst into laughter and the team was in chaos. Sun Wu gave another order, but the ladies-in-waiting just thought it was fun and didn't listen at all. Sun Wu said that since he had understood the order and didn't listen, it was the crime of the leader and ordered the two captains to be put to death. The prince of Wu hurriedly ordered that the princess should not be killed, but Sun Wu killed two princesses. Then, Sun Wu rehearsed the ladies-in-waiting, and this time no one dared not listen to orders. During the Warring States period, in order to save Zhao, Qin sent troops to besiege Handan, the capital of Zhao. Zhao asked Wei for help, and Wei sent troops to save Zhao. When Qin heard that Wei sent troops to save Zhao, he sent people to Wei to threaten Wang Wei. Wang Wei gave in to Qin and ordered those who went to save Zhao to stay where they were. So he wrote to Xin, the son of Wei State, for help. Xinlingjun once avenged Wang Wei's favorite concubine, such as Ji, for killing his father. Xinlingjun let Ruji steal the art of war from Wang Wei, thus seizing the military power, leading tens of thousands of soldiers to Handan, defeating Qin Jun and solving the siege of Handan.