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“Popular Rei and shy Kira are worlds apart, until one fateful day brings them together. Rei stumbles upon Kira in the harassing hands of her sleazy art teacher and saves the quiet girl from his clutches. And when the jock plants a kiss on a statue of Mars in the studio, Kira finds herself drawn in and even summons up the nerve to ask him to model for her but problems already lurk on the horizon. Vicious upperclassman Harumi has had her sights set on Rei for a long time, and is not about to let go now. One of the most popular teen girl manga series in Japan, Mars is a drama that will meet the demand of the growing female comic-reading market,” (Amazon).
Wikipedia entry: http://en.wikipedia.org/wiki/Mars_(manga)