Infinite Stratos

Infinite Stratos, also written as IS (Japanese: IS〈インフィニット・ストラトス〉, Hepburn: IS ), is a Japanese light novel series by Izuru Yumizuru with illustrations provided by Okiura (original MF novels) and CHOCO (new Overlap novels). A 12-episode anime adaptation by Eight Bit aired in Japan between January and March 2011, and an original video animation (OVA) episode was released on December 7, 2011. An exoskeleton weapon engineered by Japan, Infinite Stratos (IS) can be piloted only by women. Its power and combat prowess are so immense that an international treaty has been signed banning its use as a military asset.