The Empress Wants Me to Marry for Peace? I Choose to Pacify the Realm

Question: What should a prince do when an empress who seized the throne illegitimately sends him to the grasslands for a political marriage? Answer: Thanks for the invite. I'm in the Tang Dynasty, and I just transmigrated. Year One: Political marriage. Year Two: Father-in-law, I really want to be emperor. Year Three: Restore the Han realm. Year Four: March south and capture the dragon. Year Five: The Xuanwu Gate succession plan. Year Six: I've forgotten my roots. No one understands the dangers of nomadic peoples better than I do. Year Seven: My dear in-laws, they can't find you, but do you think I can't? Year Eight: Ride to Langjuxu Mountain. Year Nine: Perform the Fengshan sacrifice on Mount Tai. Li Heng transmigrates to a parallel world and becomes the ninth prince of the Great Zhou Dynasty. What? You're sending me off for a political marriage? What? The empress seized the throne illegitimately? What? I'm the grandson of the Heavenly Khan himself? Faced with this situation, Li Heng doesn't hesitate. He swears to uphold Heaven's mandate, put down the rebellion, and restore the glory of the Heavenly Khan! Li Heng: “You old hag, let's settle this at Xuanwu Gate. Don't be late!”