Shen Huai'an, a modern mechanical engineer, transmigrates into the body of a fallen-from-grace scholar near the end of the Hongzhi era. Starting with an improved dragon-bone waterwheel, he uses technology and ingenuity to carve out a path through political intrigue and national crises during the Zhengde reign, unexpectedly making his way to the heart of the Ming court. And Zhu Houzhao, the young emperor infamous for his outrageous antics, is waiting for him.