Return to the Tang Dynasty and Become a Martial Saint

I was the sick and weak prince of the country in the early Tang Dynasty, and on the day I was bound to the Martial Saint system, I backhandedly broke into a drinking scandal involving a Turkic envoy. "Is this bad wine worthy of being called a tribute?" System prompt: Strength +10, obtain "Secret Recipe for Distilled Liquor". The city of Chang'an was in an uproar, and the emperor summoned me to the palace. In front of all the civil and military officials, I slapped the blueprint of the "God's Arm Bow" rewarded by the system on the table. "Your Majesty, with this magical weapon, the Turks can be defeated." When the Turkic cavalry pressed against the border, I rode out alone, behind me was the Modao army formation that had just been unlocked by the system. That day, the people of Chang'an saw the light of a green dragon sword splitting the dawn of the grassland.