Might I interest you in yogen, potentially? It's a horror game that takes place in a high school, and while we can keep up a pretty good pace, AC is a reasonable 10 comments/month (or 5 comments and a top-level/open post).

For Junko specifically, I can also offer you a small but very cute Danganronpa cast who I highly recommend, aaaaand we've got a good handful of antags and other more morally flexible characters too so far. I know at least a couple of them would love to see more added to the mix, so I think she'd probably have a good place to fit in if something like that appeals to you too!