Telekinetic Silence (Five hargreeves x oc)

Mila is a girl that the commission kidnapped when she was a kid back in 1990 for her supernatural abilities. Her powers were Telekinesis. The handler wanted to make her more powerful than she already was, so the handler decided to inject Mila with a serum.

The serum kept the girl young 15-16 years old. Soon enough, when Mila was five, the serum affected her, giving her speaking problems. She can't talk, she can make sounds, she can understand people to she just can't form words perventing her from talking. She is also sensitive to sounds. The louder the noise, the more it hurts her. If it gets really loud, her ears start to bleed.

Mila's telekinesis is very dangerous when she's angry, scared, or just can't control herself. The handler had made the dissison to keep her locked away in a cell/room. The cell/ room had no windows, The only window it had was a small square one on the door. The walls were pure white. You can only imagine how it could drive someone crazy.

During five's stay at the commission, he met Mila. Soon enough, he had grown interest in the girl. Every day after missions, he would sit outside her cell door, and he would rant to her about his family, the apocolypse, etc. The handler saw this and decided to let Five go into her cell/room. Five taught her sign language so that they could communicate.

One day, five told Mila that he was going to escape the commission to go see his family and stop the apocalypse... He took Mila with him.
What happens now?

Sorry that this was long. I just didn't want to make a chapter for this! I don't own any characters besides Mila!!!