When Shuai Jia Mo, who is obsessed with mathematics, stumbles upon a historical problem in Jinhua County, he's met with multiple obstacles in his attempts to correct the mistake, triggering a tension between various stakeholders. (Source: iQiyi) ~~ Adapted from the novel "Xian Wei Jing Xia De Da Ming" (显微镜下的大明) by Ma Bo Yong (马伯庸).