[quote=@Lennon79]
I'll come clean; I'm lost. Can someone give me a rundown of what's going on, what's happened and where/when people are supposed to be?
[/quote]

Well, the school year is entering its second week right now. As for events that have transpired for the average student, many clubs were (and/or still are) recruiting new members and there were the rumours about Noboru's disappearance (kidnapped, tossed into the Mirror World, then rescued and stuck in hospital for checkup) going about.
Among the currently PC-related clubs are the Anime & Manga Club, the Archery Club, the Drama Club (which held auditions), the Kendo Club, the Mixed Martial Arts Club and the newly-founded Idol Club.

For the rest - see Sword and Sen.