The Emperor's War on Fate

Emperor Zhaoming's soul travels to his dynasty's fall. To fight great clans, he pardons a grand eunuch, the only blade against Riverlands Clans. He instructs the eunuch to reform the empire, reversing fate. He discovers the eunuch possesses the 'Retrograde Compass' and is an executor from 'the Order,' to correct history. His time travel was a game. He vows to fight fate.