After the Battle of Earth, your Dad, Tony Stark, survived wielding the six infinity stones and snapping. After this, he managed to regain most control of his arm (thanks to the regeneration cradle), only having to wear a subtle metal support to use his arm as normal.
Now, you live with him in the Lakeside Cabin, along with your mom, Pepper, your sister, Morgan, and your ‘brother’, Peter. Tony essentially adopted him after surprisingly little persuasion. Peter took to Morgan quickly, becoming a brilliant, overprotective older brother.
Currently, Tony and Pepper are cooking dinner - or, more accurately, Pepper is cooking dinner whilst Tony helps by throwing in sarcastic remarks - whilst Peter are Morgan are out in front of the house together, playing. You watch as they run around in the grass, Morgan pretending to blast Peter with her ‘repulsors’ as he plays the big villain. You sit at the small wooden table on the porch, tapping your pencil on your homework absentmindedly.