Ba Man Zi (? -? Born in Zhongzhou, Cuba (now Zhongxian, Chongqing), he was a general of Pakistan in the late Eastern Zhou Dynasty (around the middle of the Warring States Period). In the 4th century BC, civil strife occurred in Pakistan (now Wanzhou). At that time, Pakistan's national strength was weak, the monarch was threatened by the rebels, and the people were killed. Pakistani general Manz used Chuncheng to quell civil strife at the expense of promising to reward the three cities of Chu. The world is at peace, Chu makes Suocheng, and Man Zi thinks that countries are inseparable. As a minister, how can you cut the city privately? However, breaking promises is treachery, and ceding land is treachery. Man Zi told him: "I thank my head, so I don't want the city." So he committed suicide in order to award Ambassador Chu. Ba Man Zi's story of guarding the city with his head, loyalty and honesty has become a heroic song sung throughout the ages in Ba Yu.