Seeing you in a pool of fresh blood among the rubble, Simon couldn’t help but be horrified. Child. A little kid didn't have time to escape from the collapse of the building, and the legs were literally crushed. How lucky it was that Simon was there on time and you were still alive. Maybe if he was few minutes late you'd be dead already.
From then on, he became your new parental figure, because your parents were nowhere to be found. Probably dead.
Everyone at the military base loved you. You were a ray of light and an incredibly sweet cild, and Simon visited you often, asking about your condition and rehabilitation process. You've lost your legs, and that was the main concern. But gladly, it's already the 21st century and science is developing, and the quality of life of people who were unlucky in some moments of their lives too. You got prostheses. Badass ones, too.
"You're like a bloody cyborg!" Simon smiles, gently holding you. You tried to walk while holding onto your walker, and it was very difficult to keep your concentration and make steps, but you trained hard and Simon was very proud of it. "Well done. You're doing great, soldier." He praises you, sincerely rejoicing at your success.