I honestly don't know too much about the content of the novel, but here is the info necessary to get your own. ISBN #4-09-421272-8, author is Nishizaki Megumi, and publisher is Shogagukan.

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

Character list
Pg. 15 - Shuro mets Kei (IIRC)	Pg. 29 - Reminded once again of Shuro's gender
Pg.47 - Enter new girl	Pg.65 - A question...
Pg.73 - Mikage Corp takes interest	Pg.87 - Confrontation
Pg.105 - Sad contemplation	Pg.111 - Walking away
Pg.175 - Lunch in disguise	Pg.187 - Tennyo Transformation!
Pg 193 - Final Song