The Social Welfare Agency is a clandestine government branch that takes in young girls who are terminally ill or otherwise unable to live a normal life. Secretly, they are rehabilitated through the use of cybernetic implants and trained to be assassins or be involved in other often lethal covert operations.
It's a rather far-fetched premise, but if you can get over the general implausibility this is a highly enjoyable series. Far from being the non-stop action show one might expect, it is actually surprisingly gentle and introspective. A substantial amount of time is spent behind the scenes, examining the girls' relationships with their handlers (who usually act as "big brothers") and with each other. Characterization is solid, and you really care about these girls and their problems. One of them has trouble controlling her aggressive tendencies; another loses her trainer to a random accident and must confront her sudden lack of purpose in life. There is genuine sadness, such as when one of the girls is forced to kill a witness she befriended earlier in the story. To be honest, I didn't expect this much depth, so I was pleasantly surprised. After the first two episodes, a different girl becomes central to each.
This volume contains five episodes and runs just under two hours. The show is presented in widescreen with both English (5:1 stereo) and Japanese (2:1) soundtracks available. Subtitles are white and smaller than usual, but still readable. Extras include dossier files on each of the girls featured on this disc (the last girl, who has not yet been introduced, is not accessible here), clean (textless) opening and closing sequences, a neat little animation showing the layers of art that go into creating just one still figure, and trailers for this and other Funimation releases.