Infinite Stratos is a story about Orimura Ichika who are the first one in the world that are able to to IS machine (because only girls can use it) and force to enter IS Training School where of course only girls in that school. And so his harem has begin.
It's really awesome, i hope that i was him cause who do want to be admire and loved by some many girl. When he enter the school, he met his childhood Friend and practice kendo together before, Houki Shinonono. She is the youngest sisters of Tabane Shinonono , the creator of IS Machine. Ichika stay at the same room as her, because they didn't got enough room.
The Next Day, Ichika got challenge by cecilia, candidate representative of britannia for the seat of Class Representative.