Hidden

In a dimension between parallel universes was where the HQ of the human rebellion against God hides. Even the Old Gods and Ancient Gods were unable to locate this place amongst the almost limitless universes. The only being strong enough to locate this place without any trouble is the ORIGIN, but the ORIGIN at this period never interfered and only watched. 

This particular dimension wasn't that big compared to the other dimensions as it was only a few million kilometers big. It was a good hiding spot when you're trying to hide away from the eyes of literal Gods. 

The HQ was a gigantic city in the middle of this unnamed dimension. The population in this city was around fifty thousand more or less. Eighty percent of the population here were made up of normal humans and twenty percent were people who had killed New Gods and gained mana.