It's about 2 asian girls, they are assassins. One girl is the assassin, and her sister i think, just assists her. Her sister complains about not ever having the chance to 'do the job' herself. The assassin girl didn't let her do it because she wants to keep her innocence. I think they lost their parents, they were murdered. Her sister is in control of a computer and other equipment while she goes straight there to take the victim out. I think the assassin meets a girl, who helps her kill this man (soemthing goes wrong with the gadjets and the men could see them) and at the end the girl kissed her. I think her sister died when people came to their house to kill them. I remember a graveyard.

I hope you can find it.