From the Start: I Turned into a Snake?

When he wakes up, Lin Chen has somehow turned into a snake! Host awakened. Would you like to activate the Devouring Evolution System? Lin Chen is confused at first, then overjoyed, and sets off on a path of frenzied devouring. A flood dragon is up ahead. Devour it? Yes! Congratulations, you've obtained dragon blood and evolved into the ancient ferocious beast Xiangliu. Lin Chen laughs. "Hahahahaha! I'll eat you all and become a world-ending demon!"