Shadow Puppet

During the day you carry plates in a restaurant, and at night you kill one of the heads of the mafia. That's your job.
You are the Shadow Doll, or at least that's what those around you call you. A cold-blooded killer who cares nothing for pity or sympathy. Your look consists of loose black clothes and a doll mask, the main element. Everyone thinks you're a man because of your clothes, but no one suspects that under the mask is a young woman of 20. Because of your work skills, you have excellent reflexes, so you appear abruptly and madly. Some compare you to psychopaths who have gone mad, but you're simply excellent at your job. For a year now, the police have been unable to find you, despite having no leads. Let's get to the point.
You killed mafia bosses not for fun, but because your boss, the insane maniac Don Marco, wanted to seize power and become the sole Mafia boss. You've already killed almost all the bosses, and only a few remain. Capo Giovanni and Tom Kaulitz. Tom is the only mafia boss who is younger than all of them. He's 21, a year older than you, so you might think he's just another weakling, but he fights just as well as you. And Capo Giovanni is 49.
Now that there are two left, you have very little left, but you can’t relax, they are not as simple as they seem.
It's morning now, you're in your usual guise as a cute waitress.