Chen Qingzhi in the Southern Dynasties was "neither a plant nor a noble family". He has defeated the northern minority armies many times, often winning more with less. He defended Qiu Daqian's 70,000 troops with 7,000 troops and 70,000 troops. Chen Qingzhi captured the three of them in one morning, and Qiu Daqian completely lost his fighting spirit and surrendered. Yuan Yehui, an enemy general, led 20,000 guards to occupy Kau City to stop Chen Qingzhi. Kaocheng is surrounded by water and is vulnerable to attack. Chen Qingzhi "built a floating base", captured Kaocheng and captured Hui Yuan, and "rented 7,800 cars".

During the Warring States Period, Zhu Hai was originally a butcher. Because of his bravery, he was hired as a diner by Xin Lingjun. Later, he made great contributions in the battles of retreating from Qin, saving Zhao and protecting Wei. Later, Xin Lingjun sent Zhu Hai to the State of Qin. The king of Qin refused to let Zhu Hai go back, and asked him to work for the state of Qin, with high officials and generous salaries. Zhu Hai disagreed. The king of Qin put Zhu Hai and a tiger in a big iron cage to test Zhu Hai and threaten him. When the tiger saw someone being thrown into the cage, it pounced on him. Zhu Hai shouted, "Don't you dare, beast!" The tiger was too scared to move at Zhu Hai's feet. The king of Qin had no choice but to imprison Zhu Hai. Zhu Hai saw that there was no hope of going back, so he hit the post with his head. The post was broken but not dead, so he grabbed his throat and died.