I found Gaiden series here (http://www.mangafox.com/page/manga/read/663/saiyuki_gaiden/chapter.19883/). And my muses are not just awake but are whistling and kicking at the gate. *sighs* Those Saiyuki boys get rather insistent when they're out.

Rainbows End: A Novel With One Food in the Future is by Vernor Vinge. There's even a Wikipedia entry for it. *laughs* It's a science fiction novel.