By accident, he traveled to the turbulent early days of the Three Kingdoms. Yang Jiahe thought he was going to struggle in troubled times, but he activated a mysterious system and now holds the secret book of development. When he had a long talk with Liu Bei, the benevolent king, he did not talk about power and strategy, but only talked about good ways to govern the country and the well-being of the people, subverting Liu Bei's understanding of the way to govern the country; he sat across from the Wolong Zhuge Liang beside the sword stove, not talking about the art of war, but they composed the music of the harp together, and the mountains and rivers found the sound. Facing the hero Cao Cao, he came up with clever tricks frequently, which made Cao Mengde so angry that he had to eat and drink every day, helpless. See how Yang Jiahe relies on the power of the system to develop his power in this era of heroes and write his own legendary chapter!