Shocked: a Snake Starts Out, and All Upgrades Depend on Swallowing

Traveled through another world and became a snake. The key point is that there are still people who want to make him into soup! Yang Wei felt very sad. He finally traveled through time once, but he didn't want to die like this. "Ding" "Congratulations on activating the most powerful upgrade system, please choose your reward" What! You can level up by killing people, and you can gain experience by eating food? So Yang Wei began his most powerful anti-human journey. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.