Gunslinger Girl, Volume 4 (Gunslinger Girl #18-22)

The Social Welfare Agency: a secret counter-terrorism unit for the Italian government that rescues troubled young girls and turns them into cybernetically-enhanced ruthless killers who do the government's dirty work. Yet the child assassins are not as heartless as they were programmed to be. Henrietta struggles with her conflicted feelings towards her handler Jose, while fellow agent Triela combats her own inner demons as she strives to remember the girl she once was. Meanwhile, the clash between the Social Welfare Agency and the covert radical group known as the Five Republics continues. As the Five Republics targets one of the Agency's handlers, the Agency plans its own counter-strike that will pit Triela against the professional assassin and martial arts master known as Pinocchio in a rematch to the death.