The strongest demon beast system

"Unexpectedly, Lao Tzu burned the Dragon Emperor in the sky, and even regenerated an animal!" as one of the eight martial emperors, Xiao Long was very unhappy. What made him more depressed was that this body also brought a strange system - killing can be upgraded and eating can add experience. Isn''t it just for fear of chaos in the world? Therefore, Xiao Long embarked on the strongest anti human road in history.