Daisuke Doujima is a second-year student at Seisho Academy. After being kidnapped as a child, he was saved by a mysterious woman named Milo, told him, "You will be visited by a terrible danger. When that happens, you’ll be the only one who can protect everyone." He blindly believed her words, and has spent the rest of his life preparing for that moment. None of his other friends believe it, though, and he has become a social outcast. But he refuses to change his beliefs, and won’t listen to what anyone else says.

(Source: Revisions Wiki)