Chemistry teacher Zhang Zhiming accidentally traveled to the end of the Yuan Dynasty. He started from the lowest level of society and tried his best to survive; he worked hard to improve the living standards of himself and those around him. Later, due to business needs, he changed his name to Zhang Wuji. After many inspections, he found that people's livelihood was difficult but he had many feelings. Considering the normal Historical trajectory - the disasters of the Little Ice Age after the mid-Ming Dynasty, and the century-old history of humiliation in the late Qing Dynasty. Finally, we decided to actively contact heroes from all walks of life to fight against the Yuan Dynasty, overthrow the rule of the Yuan Dynasty, re-establish a strong country, and lead the entire Chinese nation to the top of the world again.