Strongest Demonic Beast System

I can't believe that I, the Heaven-Burning Dragon Emperor, have been reborn as a beast! As one of the Eight Seal Martial Emperors, Xiao Long is extremely unhappy. What makes him even more depressed is that this body also carries a strange system - killing people can level up, eating things can add experience, isn't this just inviting chaos? Thus, Xiao Long embarked on the path of the strongest anti-human in history.