I'm writing a fic. Yes. ( bet you didn't see that coming, did you? )
But there's next to no original characters, only my own. And I'm not sure if this is a rule where you only have to include main characters for the plot? F.E; Lisa, Homer, Bart, etc.

I might introduce other secondary characters F.E; Burns, Flanders, Wiggum, etc.
But just because it has no original main characters, can it still be enjoyable, or would it not count as a fic. Just a story