So Buddha is really human who became gods like Hercules in this series.
This does make me wonder if Buddha is some kind of weird deified human that became a god, met the other Gods and promptly found them and the entirety of Heaven to be disappointing. Lol.
If Huang is the human that desires to become a god, Buddha could be the god that yearns to be human once more.

So Buddha will fight for humanity? That's interesting. So I'm guessing that Qin Shi Huang will be the one that fight Buddha?