Programmer Liu Mingxi unexpectedly transmigrates into the body of the foolish ruler, "Great Martial Emperor Liu Mingxi," and binds himself to a "Wise Ruler Reform System" that gained a snarky commentary feature because of a bug. Under the System's "threats and temptations" and "poisonous-tongued mockery," he has no choice but to launch a hilarious yet hard-hitting campaign of ancient reforms. Using modern thinking and black technology, he turns the Great Wu Dynasty into a "Earth Online" server and ultimately achieves true "world unification."