Ichika Orimura is the young first year student of IS Academy who is later forced into becoming the Vice President of the Student Council. His sister is actually the legendary IS pilot who is said to have protected Japan from a massive missile attack. He is extraordinarily oblivious when it comes to the feelings of other people around him, and seems to completely unable to catch on even to the most obvious and straightforward expressions. He pilots the Byakushiki, an IS prototype that specializes on short-ranged melee attacks. It was later upgraded into the Byakushiki Setsura.