Who Was Betrayed First?

Izuku Midoriya, a 4 year old boy had a friend named Katsuki Bakugo. They were the best of friends, they did everything together. At last, it was time for the two friends to get their quirk. Katsuki, also called Kacchan by Izuku, had an explosion quirk that was quite strong for his age. A future prodigy people say. The young, green haired and eyed boy, that had eyes as big as dolls and a personality as kind as something, or someone that nobody could try to live up to but never reach it, well what did he get. Well, he got nothing. It all came crashing down. He was quirkless. How was he supposed to become the #1 Hero now? To make matters worse, his best-friend bullied him since he heard the heart-breaking news.
Up to the age of 14, middle school, Izuku(now called Deku by Katsuki,) hadn't tried to fight or protect himself, but then.. He had enough. The next thing was, "Izuku Midoriya, Aged 14, Commited Suicide By Jumping Of A School Roof." Katsuki was heart-broken. Not to talk of Inko Midoriya, the mother of the poor boy, now had lost her only son.

After a few years, Bakugo had made it into UA, a hero training highschool. Ofcourse he still has his ego, the difference was.. He was more quiet than ever.. He thought he was guilty. He blamed himself for the unfortunate death of his bestfriend. One day, he decided that he should go on a walk, he saw someone, someone who looked like.. Could it be? Izuku, Deku!? But, he looked... different.