A lot of chaos in this chapter, but I'm a big fan of letting all the girls interact with one another. Kaoru's declaration of war was hilarious, especially considering how sweet and soft-spoken the target is, and Minato's day was pretty much maderuined, as she will most probably be unreasonably turned on for the rest of it.
I am really looking forward to the sleepover(?) chapter. I'll be fully honest, I very much hope it goes into NSFW territory with that (let's say Asumi-chan style), but other than that I'm also looking forward to seeing how Karin's schtick unravels, and I expect her to be slightly more out there than the others.
As an aside, part of me really wants to refer to the girls by their theme/schtick, but I'm not sure that it works particularly well, so yeah.