IS: Infinite Stratos

Japan developed a powered exoskeleton known as the Infinite Stratos (IS), which became a primary weapon system. Only women are capable of operating IS units, leading to a societal shift where women hold dominant positions over men. A 15-year-old boy named Orimura Ichika unintentionally comes into contact with an IS at a pilot training school. He is discovered to be the sole male able to operate an IS and is consequently required to attend the training school. His school life begins, surrounded by female classmates. The original light novel series was discontinued in 2011 and later resumed the following year under the Overlap Bunko label. This change resulted in a new illustrator for the series, CHOCO.