acqua of the back
後方のアックア Kōhō_no_Akkua William_Orwell ウィリアム=オルウェル Wiriamu_Oruweru
Acqua of the Back, real name William Orwell, is a character introduced in Toaru Majutsu no Index. A strong and willful man, he is a mercenary of renown in England, and originally a Saint of terrific power. He was a member of God's Right Seat, and is one of the few characters who easily defeated Kamijou Touma in combat.