Until Death Do Us Part Vol. 7 (manga)

Through an audience with the leader of the Element Network, Haruka learns more about Mamoru's past - how his aspirations to master all forms of combat led him to a military training facility in the US and from there to service with the Element Network. It was on a mission to stop TPC, a criminal group responsible for abducting children in Chechnya, that Mamoru first encountered the hitman Jesus - and lost his eyesight.