Modern young man Chen Yang traveled through troubled times, awakened the "Datong Collective System", and rose to power with the help of the collective reward mechanism. He started by seizing weapons, promoted public ownership of land, distribution according to work and guaranteed rations, established collective farms, and united the people. Then, farming and fighting are integrated, unlocking technologies such as fertilizers, and creating an invincible "people's army". After unifying the world, imperial power exploitation was abolished, "Great Harmony" was established, and monthly wages and social security for all were realized. Ultimately, it promotes the explosion of science and technology, spreads the collective system to the world, liberates slaves, eliminates exploitation, and establishes the most united, equitable and powerful global system in human history, realizing that the world is for the common good and all nations come together.