Triggerman.

Follow as a young, typical girl from a boring town, who led an arguably boring life, develops into a seemingly cold hearted killer, while masking it all and keeping up the sweet facade in the presence of her family and friends. She doesn't see the bad in what she does, only the way that it will better the world, however of course not many others would see the benefit of killing people, normally un expecting recipients, in exchange for some pocket money.