I think some time in the near future Shirai's little darling has a run in with a bully (I think it is Kuro,) There was a raw page on K.W. blog that shows her standing up to this person. I posted a link to it here:
http://watashiya-kaworu.cocolog-nifty.com/1/
It is the 12/22/2009 post that has the page I am talking about If you look through her blog she shows a lot of raw pages as teaser backdrops.
It would make for a compelling story for Rin an Mimi to find out one of their own has turned to the dark side. Plus there was a page with what looked like Shirai in a swimsuit that hasn't appeared yet I don't think maybe it is a scene were she is reflecting on his confession. I may be see Houin getting Shirai to go out with him. Mean while Rin tries to pull some more dirty tricks and even Reiji trying to distract Rin so he can go out with the boys again.