It wasn't heaven. It was a high school for kids who died young and lead unfair lives. We all fought so that we didn't have to accept those unfair lives and we had a chance to fight back and be able to actually do something about it. If you became satisfied, then you disappeared from that world and would be reincarnated.

Recently, a bunch of shadows that turned you into NPCs if you got eaten showed up out of nowhere though and I found a trail that would lead me to God, but I ended up getting mauled by the shadows and here I am.