Wang Mang's Time Travel Aide

I, a 985 history graduate student, traveled through time and became Wang Mang's staff on the first day I came ashore. I know all his endings: the fifteenth year of the new dynasty, the Battle of Kunyang, and his self-immolation. But he doesn't know yet. He was holding my hand with tears in his eyes: "Zixi, I want to rebuild the world according to the "Rites of Zhou", please help me." I opened my mouth and wanted to say, "Your Majesty, that is outdated." But looking at the light in his eyes, I only said one word: "Okay." This "yes" cost me sixteen years in the new dynasty. ——