Title : Light's Silhouette (Hikari no Shiruetto)

Lyric : Yurie Kokubo

Singer: Soichiro Hoshi
He is the seiyuu of Senri Shiki (Vampire Knight) n Kira Yamato (Gundam Seed). Also the seiyuu of Souma n Zero (Xero) in this wallpaper.
His voice is so good in that song! (U can listen it on the title)

Hikari no Shiruetto is an ending song from anime ShiningTearsXWind.

Using these scan : Akizuki Souma, Zero (Xero)