Zhang Jun, a person who traveled from the 21st century to the Ming Dynasty, relied on the gap in knowledge that was four hundred years ahead of the contemporary era to make his fortune by making soap. At this time, the Ming Dynasty was experiencing internal and external troubles. Zhang Jun looked at the suffering land of China, and a sense of responsibility for safeguarding Chinese civilization arose spontaneously! Zhang Jun accumulated financial resources by creating a business empire. In the north, he helped the Tatars grow potatoes to solve the problem of nomadic intrusions to the south. On the southern coast, he tried his best to support the Qi Army and fight against Japanese pirates. He promoted high-yielding plants internally and cracked down on grain profiteers. Facing the advent of the Age of Discovery, Zhang Jun Facing the invasion of Western countries, Zhang Jun teamed up with Zhang Juzheng to establish the policy of open sea and mutual trade. Zhang Jun started global trade, opened waterways, mined silver mines from Mexico, accumulated capital, built a powerful fleet, and thwarted the covetousness of many maritime powers to the land of China.
