Wu Shihuan, a college student in the Department of History, accidentally transformed into Wu Shifan, the grandson of Wu Sangui, just as Kangxi wanted to withdraw his vassal order and hid his murderous intention. Carrying the historical memory of his previous life, he was determined to reverse the fate of the Wu family's defeat and death. Faced with the talented and scheming Kangxi, with the unruly attitude of "Kang Mazi, let's see who kills the other", he rose up to counterattack in the turbulent and chaotic times of the early Qing Dynasty, setting off a showdown that rewrote history.