A modern high-IQ youth transmigrates into the Dayong Dynasty as the Ninth Prince, who is the least favored. On the surface, he plays the role of a playful, womanizing, and decadent good-for-nothing, but in reality, he is calculating and ambitious, building his own factions with peerless intelligence. Amid the encirclement and hunting by a crown prince and other princes of equal intelligence, he plays the pig to eat the tiger and step by step climbs to the top. Within five seasons, he overthrows five major factions, finally becoming the sovereign ruler who unifies the world.