Martial Arts Immortality: Start by Devouring Demons

The Great Shang Dynasty - the human race is a stupid dog, and the demons control the world! Shen Lian traveled here. Fortunately, he obtained the system! Demons eat people? Then he will eat the monster! He smashed the black fish demon with his fist and swallowed the source of the sea; he killed the howling moon wolf and deprived him of his talent of extreme speed. … The police officers who were complicit in the past are now smiling at the sky with their swords: "Since this world regards humans as pigs, then I will use the flesh and blood of hundreds of millions of demons to forge my path to eternal life in martial arts!" In this life, demons and monsters are not allowed to be honored, only for the human race!