A conscientious and conscientious modern community grid member who is proficient in "a thousand lines above and a needle below" accidentally traveled through time and became a fatuous emperor named "Dayan Dynasty" in ancient times. He applied a set of modern grassroots working methods, such as grid management, WeChat group notifications, public opinion questionnaires, KPI assessments, garbage classification, and mediation of neighborhood disputes, to the governance of a huge country. This triggered a series of ridiculous events, but through a combination of circumstances, this dynasty that had been suffering from deep problems was given new vitality (and chaos).