黒い翼　復讐屋・華

Chie was a high school teacher of the class of new students are warmly welcomed. ... But it is only skin deep, this class was the insidious bullying was rampant. One day they committed suicide Isozaki students come to school that much. Chie on "[I'm torn between trying to seek revenge ya ask classmates to punish the" left behind the words. After his death, before Chie had been targeted by the new students to ya "revenge" appeared claiming to be a girl! ( http://kc.kodansha.co.jp )