Da Qin: I Actually Became Fusu's Military Advisor

Zhao Xuan traveled across the Qin Dynasty to prepare for the uprising, and taught "Old Zhao" how to govern the country. Two years later, when the Qin army launched an encirclement and suppression campaign, they discovered that "Old Zhao" was actually Fusu! "Your Highness, are you teaching yourself to rebel?" - This time traveler has made the most outrageous overturn!