I really like these character choices, to be honest, so let me recommend afterliving to you! It's a game set in a school-based afterlife from the Angel Beats! series. However, while I cannot offer you any castmates, I can tell you that it fits all of your other preferences! We are very backtag heavy and our AC is 20 comments bimonthly within three threads, so I'm pretty sure you should be alright.

We also have a lot of plot and slice of life (well, slice of afterlife, really), but if you need any information about the plot itself, you're free to ask me! And that includes any other questions as well, of course.

Our ad is here and you're free to use the test drive, so we hope you consider us!