Living in the Lower World, Greedy Snakes Help Me Rise

My name is Jiu Ying. Yes, the ancient ferocious beast Jiu Ying has the same name, but this is not my name. This little jet-black snake next to me is. It knows everything, has strong skills, is not very capable, and is greedy. It is useless when it encounters danger. Until the day it leaves the cage, it blocks the sun, swallows the sky with nine heads, and kills thirteen gods with its wings...