Two hired killers, more like assassins, cross paths and by accident, had the same target. But when 'she' had the chance to kill her target, a shot was fired, hitting it in the head, killing it on the spot. And there, out came another hired killer, who is scary and excellent as . He was standing about ten meters away from her. 

 "What the heck?!" her face is all red in anger, walking towards the guy.

 "You're too slow to kill. Tsk, poor you." the guy shook his head.

 "Shut up, pal. You just killed my target. I mean, what the , I got here first and he's my kill, my money!" she shouted at him.

 "Look, I don't care if he's your target or whatever he was to you. I just need to kill him for my own good, for my own money, of course," the guy calmly replied.

 "I'm gonna kill you, seriously."

 "Well, I guess you would. But, not now. I still have other things to do. Maybe next time? You'll have your chance, don't worry. Adios." 

The guy ran away and she quickly lost him. "Damn it," she cursed.

This is where it all started, these missions and all. But little did she know that this guy, whom she hates to the guts, was a part why she became like this.