Eyes Rutherford

The world-class pianist, he is second only to Kiyotaka Narumi, Ayumu Narumi's older brother. He is seemingly cold-hearted but definitely not heartless (he brought Rio melons when she was stuck in the hospital). He cares a great deal about the Blade Children and would do anything for them to survive at all costs. He is exceedingly loyal to Kiyotaka's words and seems to believe in Ayumu the most out of all the Blade Children. Eyes knows much more than the other Blade Children do, holding secrets he keeps to himself. He is one of the first targets of assassination by the Hunters (after Sayoko) but outwits them at a charity concert with the help of Ayumu and Kousuke.

He and Kanone have a some sort of bond, even though the friendship between Eyes and Kanone seems to shatter once he learned of Kanone's betrayal of the Blade Children. Eyes appears to be the leader of the Blade Children but he treats Kanone as either an equal or even an older brother. (Source: Wikipedia)