On the night when the cold blade broke the oath, Xie Jin was betrayed by his cronies, and the blood of seven thousand elites stained the snowfield. He rode alone and broke the oath, the broken blade was stained with blood, and he swore to wash out the center with blood. After three years of forbearance, he gathered the remaining troops, used the souls of the dead as his banner, and hatred as his blade, and went straight to the heart of the empire. And Lu Xiao, who used to be side by side, is now in charge of the imperial army, holding the emperor's order in his hand, and is ordered to destroy the "rebellious ministers". The two met again at Broken Dragon Tower, and their swords pointed at each other. The words "you and I died together" caused the whole city to burst into flames. Is it loyalty and betrayal, or is it just as righteous as a knife? When Xie Jin's broken blade pierced the dragon chair, Lu Xiao's iron armor stood between him and the world.