A modern man, Li Shi, soul-transmigrated into a matrilocal son-in-law of the Xie family in Jiangzhou during the Great Su Dynasty. After being drowned by Xie Qinghan of the second branch, he was resurrected in a mass grave, whereupon he feigned amnesia and secretly plotted. He practiced martial arts to strengthen his body, made preserved eggs and monosodium glutamate, taught Xie Qingyi double-entry bookkeeping, rectified corruption in shops, saw through an assassination attempt, subdued the assassin Shen Qi, and severely dealt a blow to Gu Yunlan and Xie Qinghan. At the Lantern Poetry Gathering, a single poem of his stirred "literary Qi into the body," shaking Jiangzhou with renown, and Gu Yunlan was stripped of his official academic honors. Li Shi and Xie Qingyi also progressed from nominal spouses to true mutual affection, joining hands to cope with the interlocking schemes of the second branch and the Gu family, and climbing to the pinnacle of life.