Transmigrating to the Ming Dynasty: I Arrived Too Late

If the Jurchen are fewer than ten thousand, they're manageable; once they reach ten thousand, they're unstoppable! A disciple of the Guigu Sect and a modern special forces soldier cross into the late Ming together in a double transmigration. They fight their way through one battle after another! They fight to the bitter end! They win every battle! They fight all the way through the Southern Ming and settle the score for a regret that has lingered for four hundred years!