Let’s see. NOT a stupid question at all, and here’s why.
My Poor Bastard pair of stories was originally posted as Original work, although it relies quite heavily on Greek mythology. So, when I reposted them, I moved them over to Books, under “Fairy Tales, Fables, Folklore, Legends, and Myth” to be more accurate.
So, I’d be inclined to recommend this go in Books, under The Bible (which is not a title in the public domain because various editions remain copyrighted although I’m pretty sure the copyright on the individual chapters expired long before I got that first pair of killer shoes). Even with a cast of OCs, it’s still the Bible, and let’s face it, people like to have things properly categorized so they can flip out about someone making light of their beliefs (which doesn’t seem to be an issue when I poke at Zeus and Hera, although I do tend to stay inside during thunderstorms).