Shen Huaian, a modern mechanical engineer, travels back to the last years of Hongzhi and becomes a juren whose family is in decline. Starting from improving a keel waterwheel, he uses technology and wisdom to fight his way through the Zhengde Dynasty in the danger of power and the crisis of his family and country. This also leads him to the center of power of the Ming Dynasty unexpectedly - and the young emperor Zhu Houzhao, who is famous for his absurdity, is waiting for him.
