After Finishing a Million Novels, I Am Invincible

I have a sword that is not afraid of gods and demons; it can break the heavens and hearts. Since Ling Feng awakened the liver novel system, he has been fighting all the way through the five continents of the other world, searching for his father's whereabouts, and discovered a shocking secret of the other world! A powerful man from another world plans to invade the real world, and his first stop is China! Ling Feng only has one sword, so how should he face it?