Modern engineer Li Ke transmigrates into the cold palace as the useless sixth prince Xiao Beiwei, binding to a destiny system that rewards doing good. By doing things that benefit the country and the people, he accumulates destiny points, and once fully accumulated, he can return to modern times. He uses modern chemistry to improve salt production, cement and metallurgy to reform armory, and timeless literary classics to awe civil officials, rising step by step. His palace maid Mingwei is actually the daughter of the former grand tutor, secretly controlling the Qingque Pavilion intelligence network and blocking assassinations for him multiple times. During a palace coup, he successfully counter-attacks, discovers Mingwei's true identity, and the two open up to each other. When powerful enemies from the northern border march south and his destiny is about to be fulfilled, he actively turns off the panel and decides to stay. Ultimately, he stabilizes the imperial court with new pro-people policies and writes a legend.