I definitely remember Homura, and possibly Suzuka, from the Mondaiji novels, plus there are these headphones... Ayato, judging by her last name, seems to have some connection to Asuka. Unsure what to think of Kuro Usagi at this point, but I'll assume she's the same old (not really) Kuro Usagi as last time, though she might be a different one. And a brand new person whose name hasn't appeared up to volume 8 (as I haven't read any further).

I just hope it's not how their community rose from being the underdog again...