Hellsing: The Dusk

A year has passed since Alucard fell, and so did Walter. The Hellsing organization is trying to rebuild, however with an American organization arriving, and a mysterious serial killer roaming the streets it seems that the Hellsing organization isn't going to be able to get any sleep. Not with Alucard back, but why is a fourteen year old kid calling him master? YW x GC, A x YW