Nine Evil Sword Emperor

What is it like when your ex-girlfriend becomes the princess of an enemy country and holds military power? After many years of fighting, his cultivation was abolished, his fiancée broke off the engagement, but his ex-girlfriend turned out to be the princess of an enemy country? Or is it the kind that holds military power, commanding millions of soldiers to name Xu Chen to be his son-in-law? Fortunately, Xu Chen relied on the black coffin he got by accident to reshape his muscles, gain heaven-reaching fortune, and obtain the peerless Nine Swords. From then on, Xu Chen carried the black coffin on his shoulders, protected his body with the nine swords, stepped on the world, and killed the gods and demons of heaven and earth with one sword.