I'll vote for NPCs.

I'm still working on that Teacher class, btw. I didn't manage to finish it on time, thus why it wasn't posted. I've largely been occupied with cooking and cleaning, as both my parents were gone for work.

My main problem with figuring out the class has been which of two directions to go with it: either DnD-focused in flavour (which would likely make it a very meta class) or like a real-life highschool teacher.