"When you work hard and finally win the world, you are horrified to find that all the civil and military personnel of the dynasty are enemy spies - and you are their chosen puppet." This is essentially an extreme and breathtaking identity reversal and environmental subversion, placing the classic Machiavellian story in a new, absurd and terrifying atmosphere.
A peerless strategist devoted everything he had to assisting a prince to ascend the throne, but on the day of success, he discovered that the empire he stole was already a spy nest carefully cultivated by the enemy for thirty years. He must complete a "lone wolf against a group of crows" reverse hunt in a stage-like court hall.