This is a pretty good fantasy, seemingly aimed at the 13-16-year-old audience ... except that in the U.S., something aimed at that age group usually wouldn't feature a warrior who changes sex frequently (although there was Dr. Occult/Rose Spiritus in the original Books of Magic, come to think of it ...) and female frontal nudity from the waist up. Takiko Okuda, an older teen (there's considerable confusion about her age, but she seems to be about 17) in early 20th-century Japan, is having an unhappy life. Her mother is gravely ill, her scholarly father neglects his family for his work, and a recent move from Tokyo to the country has landed Takiko in a new school populated by hicks who resent her. A strange series of events lands her in the middle of the story described in her father's latest book, with Takiko now in the role of the heroine: the priestess of Genbu who must gather the seven Celestial Warriors to save a nation that Takiko never knew existed.
I'm enjoying the story and am interested in how it will all turn out, but I don't feel terribly passionate about it.( Read more ... with spoilers! )
Note: Edited to correct the name of the Books of Magic character mentioned in the first paragraph.