Saori Seto

Issei Hyodo is your average perverted high school student whose one wish in life is to have his own harem, but he's got to be one of the unluckiest guys around. He goes on his first date with a girl only to get brutally attacked and killed when it turns out the girl is really a vicious fallen angel.

In the near future, superpowered exoskeletons called Infinite Stratos (IS) can only be piloted by women, which has revolutionized society. Ichika Orimura, younger brother of a famous pilot, is the first male who can pilot an IS, so he is forced to attend an all-girls' school and train under the scrunity of the government and his older sister, a teacher at the academy.