3 volumes have been released in Japan. In terms of already translated chapters I have the first 2 volumes ready to typeset, which is a total of 20 chapters + 2 bonus chapters. Currently I've typeset 9 chapters, I'm trying to do at least 1 chapter a day but I make no promises. Should be caught up fairly quickly though.
I like these stories - it may be just the way I'm reading it, but Touma-kun seems to be the "hook" that hangs the stories together and they aren't really about her ... to me the stories are more about all the other girls, of how they find something new/different about themselves (or others) or how they change (or refuse to change in the case of the nurse).
Recently found this and love it so much!
It would have been nice if there could have been a little more yuri (a confession and perhaps a kiss ... especially Azusa and Yui) - but then again it still is good as it is.
Weirdly enough, you were so close to another goldmine just above Miss Sunflower in the series listing. Behold, the best size contrast yuri I've yet found: