One day in the Future, a fresh exoskeleton called the Infinite Stratos (IS) structure was advanced in Japan and rapidly showed exactly in what way absolutely it might seize out sort of traditional armed guns. The weapon was shortly taken by adoption by several nations — only women could pilot it. This changed the communal construction to supporting females over males, until every man Ichika Orimura suits the first male to activate an IS and is afterward thrust into a new life as a fresh student at the respected — and previously all-female — Infinite Stratos Academy.
Ichika's high school life is about to get very entertaining. However, his school life is filled with many fences and interesting characters. His Tsundere childhood friend Houki Shinonono is one of his classmates, but her sister Tabane is reliable for building the I.S. and Houki dislikes her for it. English Upper Class Twit Cecilia Alcott hates feeble men and has trouble finding a decent guy. Chinese Genki Girl Huang Lingyin is Ichika's second childhood friend and a Pettanko.