I honestly don't know too much about the content of the novel, but here is the info necessary to get your own. ISBN #4-09-421273-6, author is Nishizaki Megumi, and publisher is Shogagukan.

Now, onto the pictures...(click to make larger)

Character list
Pg. 11 - Aki and Aya meeting Sara	Pg. 21 - Looking down from a hill
Pg.43 - Stepping into a face-off	Pg.75 - A kind smile
Pg.117 - Staring into the rain	Pg.129 - The first cut?
Pg.165 - tragedy	Pg.201 - remembrance of Tooya