Opposing The Reverse

This book, "Above Chang'an"

The most tragic rebellion in history

Looking at the only two subordinates he had, Yang Xuan felt that this rebellion was somewhat frivolous

My lord, this is not rebellion. It is... counter-revolution! Yi Niang said earnestly: "You are the legitimate ruler, while the one in Chang'an now is a false emperor."

Until one day, Yang Xuan opened the magical scroll that came from a thousand years in the future

It turns out that rebellion, no, it turns out that opposing authority is really not a big deal!