Infinite Stratos

Infinite Stratos is set in a world where the armed exoskeleton known as the Infinite Stratos has become a dominant weapon, but only women are believed capable of operating one. Fifteen-year-old Ichika Orimura breaks that rule when he accidentally discovers that he can activate an IS. As the only known male pilot, he is forced to enroll in an IS training school, beginning an unusual school life surrounded almost entirely by girls.