"Henrietta" was an innocent little girl when her entire family was massacred and she was left for dead. She was rescued by a privately-owned social welfare organization and given cybernetic components over her battered body. Brainwashed by the organization, she and four other girls now work as cold-blooded assassins, doing the dirty work for the Italian government.

[Source: Anime News Network]

When the Social Welfare Agency investigates the disappearance of an operative, their inquiry leads them right into the lair of their rival, the Five Republics. The assassin Triela infiltrates the hostile organization, but her search is cut short when she finds herself staring down the barrel of a gun...

[Source: Anime News Network]

Episodes 14 and 15 of Gunslinger Girl: Il Teatrino.