Normally, a story with such a lack of impact would probably have gotten a 2/3 star rating from me just because I didn't care enough to dislike it but this story is the peak of unremarkable stories I've read so far, and I feel it deserves some sort of recognition for that. It has a paper thin plot and the most boring characters I've come across in a while. The plot development was virtually non-existent -it just sort of coasted above actual drama the entire time. And the one possible source of drama was cleared up without much trouble (maybe it was an issue with the pacing?). If I were to describe it, it's like the feeling you get when you realized that you've just finished watching an entire TV program, but can't recall anything about it.
Long story short: if you're looking for a manga that will evoke an emotional response, keep looking. If you just want something to kill 20 minutes...also keep looking; you can easily find a better way to waste time on this site.
Negao wa Micha Iya