In this My Hero Academia universe, Izuku Midoriya was an orphan that was adopted by Inko Midoriya and Hisashi Midoriya, who have an older child named Jutsen Midoriya. They are a rich, prestigious, famous family. They had lost a child when they were a baby and had been searching for them. They adopted Izuku Midoriya. They all loved eachother and treated eachother very well. Years later an orphanage claimed to have found their lost child, Morgan Midoriya. They adopted her, but she was secretly evil, manipulating the family to try to get rid of Izuku Midoriya and only showing her true colors around Izuku Midoriya and people she believed were in hervway or unimportant. Morgan Midoriya pushed Grandma Midoriya down the stairs and she went into a comma. Morgan Midoriya got it pinned on Izuku Midoriya, causing everyone to turn on him, believing that he was jealous of Morgan Midoriya and was to spoiled.

Izuku Midoriya and Katsuki Bakugo had been engaged and they loved eachother, however after the grandma incident the family pit off the engagement, lying to Katsuki Bakugo saying that Izuku Midoriya didn't want it and was going to study abroad. They engaged Katsuki Bakugo and Morgan Midoriya instead. They also lied to the grandpa, saying that Izuku Midoriya was going to study abroad. However they sent him to reform school instead, believing that he needed an attitude adjustment.

Izuku Midoriya spent two years in reform school and it was hell. It was a terrible school. He almost died multiple times. He got many scars on his arms and legs and torso and back. Once he got to injured so bad that he had to get his left arm amputated. he uses a realistic prosthetic So that nobody can tell he lost an arm unless it falls off. He always wears long sleeved shirts and Long pants to cover uo all of his scars and the connecting part of hid prosthetic arm. His family never knew of any of this, and whenever he called and begged them to take him home, saying that he was going to die, they thought that he was being dramatic and trying to manipulate them into bringing him home.

Where we are now in the story. After two years, they let him come home for his grandpa's birthday party, believing that he has learned. Gone is the boy that Izuku Midoriya once was. He never smiles. He is malnourished and skinny. No longer is the sweet smiling bright eyed boy that would talk about heroes and mumble while writing in notebooks. He doesn't call his mom and dad mom and dad anymore, he calls them sir and ma'am, and calls his brother sir as well. He doesn't view them as his family anymore.

He doesn't show them his scars or tell them that he lost an arm.

All of the Midoriyas have Green hair and eyes, even Izuku even though he is supposedly adopted and not biological. except Morgan, who has brown hair and brown eyes.

Secretly Morgan Midoriya isn't actually the lost biological child of the Midoriya family. she is a fraud that switched the paperwork at the orphanage to try to get a good life. the real lost biology child is Izuku Midoriya, and Morgan Midoriya is the only one that knows this which is why she is trying to get him kicked out of the family. yes, they adopted Izuku Midoriya and didn't know that he is their lost biological child. quite the coincidence.