白銀 正宗

The wielder of 'Jikusogi', a katana-shaped Kurogane that allows the shifting of momentum. He is a pragmatic young man with a scarred face and a tragic past. He loves earning money more than anything else, and he is incapable of resisting free stuff. He is the vice-captain of the First School's Kurogane unit and its frontline commander.
In the past, he survived a major terrorist bombing that killed one of his best friends and his older sister, leaving him without family and burning with a desire for revenge. This caused him to become a pseudo-terrorist in hopes of luring the terrorists that killed his sister in and murdering them, but he discovered that they were all dead when he was confronted by a detective.