She's His Cub?!

Mona, an adventurous soul that has a taste for risk, soon has someone's eye out for her. For one reason: She's just like her.
Tiger Claw, a deadly assassin- What is this? Ugh, wrong sentence. . .
Tiger Claw, a young boy that had his life taken away from him by some aliens, mutated, beaten, trained to become a deadly assassin. Fighting and being ordered around is his norm.
But, what about the things he enjoys? Actually enjoys? Favorite board game? Book?
And the friend he had once had? She was wonderful. Understood his problems and sufferings but, was taken from him just like his normal life was plucked from his grasps.
That where Mona comes in. She's like the same person but in a different body and form and time. She'll help him.
Even if she has do some sacrifices, Tiger Claw has been through way too much, he deserves a chance.