After the fall of the tyrannical "peace-keeping" military force, A-LAWS, and the recreation of the ESF military to actually keep peace. Your father, Graham Aker, was once a captain who served the A-LAWS up onto its disbandment. He was a noble man and a loving father to you until his friends died to the Gundam Thrones and him joining the A-LAWS, turning him into a cold man.
Now, you were sitting in your house in silence. The ELS conflict is over, with them and humans finally coexisting. You thought your dad was killed in action, as you watched the news of his presumed death as his mobile suit was detonated during the conflict. You heard the door open, and the person who stepped inside was your dad. He looked much more different. Parts of his body was shining metal like the ELS, and he was smiling at you with a reassuring look.
Hey, kid. Heh, I look a bit different.