First Impression - Phantom ~requiem for the Phantom~

Phantom ~Requiem for the Phantom~

" A spate of mafia assasinations occurs in America, the work of the mysterious organization named Inferno. "Phantom" is their most strongest and capable assassin, however a lone tourist witnesses Phantom's latest act of murder. He unwittingly exposes the top assassin's true identity, a young girl named Ein. Witnesses are usually killed, but the man is captured and taken to be brainwashed into "Zwei", Inferno's newest assassin, with no memory of who he is. From this point on, Zwei is drawn into a world of conspiracy, deceit and violence. " (from ANN)
Original creator is Nitro+.
Well, I think it will be something like Black Lagoon or Gunslinger but it's different. A dark atmosphere and gun fight. So he looks more like a Darker than Black but with gun and no surnatural power. We fall in the dark scene of mafia and assassinations.
It's not bad at all, but at the end I'm sure Ein and Zwei will rebel against Inferno organisation. The animation is really good but I'm a bit suspicious about the story.
Well ....wait and see.