From AQUA Scans:
During the entrance ceremony of high school, while looking at the rainbow after the rain, the main character Haru met, an unusual girl with an aura of 「air」-?
5 Chapters (Complete)

It started quit good, but the direction it went in the last 2 chapters made it a story not worth telling at all. When i'm looking for a shoujo/ romance, i want to read about 2 people falling in love, im not really interested in a story about 2 people who just become friends.
If anything the title of the last chapter "Prologue" fits this perfectly. I expected there to be some profound reason behind her wanting to be "air" but there wasn't much impact. I kept rooting for the childhood friend through out the series. Simply put the subject I gave for this comment fits this manga perfectly. Don't expect too much.
I completely agree with Alex on this. I'm still trying to read just hoping it will get better but thus far I absolutely hate the main female. This manga is full of idiot characters...in one way or another...they just make me mad.