Heading out for a while. May have limited access for the next few hours (so Suwako may make a reappearance), but no guarantees.
Currently, I think our ideal course of action is to head back to Renko's and get Tenshi, Renko and whoever else might be there (Maribel would be good, Kogasa would be great, a PrismReznor would be excellent) and take them up Youkai Mountain to meet up with Nitori's crew. I don't fully trust Pocky and Brocky here to be completely docile upon her re-awakening, so I want that firepower on-hand, but like Yukari mentioned, we don't want to overload the poor thing. I envision her waking in Nitori's room with ourselves and some combination of Tenshi, Renko and Nitori present, as well as Kogasa and a PrismReznor if we can get them there. The big guns can wait outside in the event of emergency. Five/six people is still a decent amount, but she's waylaid two of them, and she knows it, so that may prevent her from going nuts. (Of course, she's going to be none too pleased about being hogtied, but that's a necessary evil.)
EDIT: I also believe that it's not prudent to go around blabbing to everyone within earshot about our friend's true identity. Renko will need to be told, and Tenshi will likely learn along the way, but the most Nitori's crew needs to know is that she's the one responsible for the shadow theft.
Draco, I kept my vow to you, so I ask the same vow in return. :V Not that I expect us to get that far in the time I'll be gone, but who knows.