Exiled to Northern Xinjiang, I Killed Millions of Enemies and Scared the Empress to Tears

[Invincible + decisive killing + single female protagonist + system upgrade flow + time travel] He traveled through time and became the ninth prince of Daqian. At the beginning, he was framed and exiled to a death row camp in northern Xinjiang, facing hundreds of thousands of barbarian cavalry. Fortunately, he has awakened the "Killing God System"! Kill an enemy and be rewarded with +1 strength! Kill 100 enemies and be rewarded with full-level archery skills! Kill ten thousand enemies and be rewarded with three thousand Snow Dragon Riders! Three years later, when the prince was still fighting for the throne in the capital, Qin Xiao had already stepped on numerous bones and destroyed the barbarian royal court. The news spread back to the capital, and the civil and military officials in the court were shocked. Emperor: "You traitor! I asked you to guard the border, but you exterminated the family?" Qin Xiao held the long sword dripping with blood and stepped on the door of the Golden Palace: "Mother, I want to borrow your dragon chair to sit on, but you won't give it to me? I have to take it myself!"