Lover or Fighter

Izuku is Quirkless, and instead of receiving One For All, he ends up meeting Aizawa, resulting in our favourite Dadzawa to basically train the green bean and whatnot.

Izuku isn't going to be in the hero course due to being Quirkless, instead getting shipped out to the General Ed Course and ends up being BFF's with Shinso.
He will end up being friends with Mei and some of 1-A and some of 1-B.

Now, Izuku also has a twin.

Izuku's twin is Non Binary and moved to America with their dad when the twins were only 6. Hayden, the twin, moved due to sticking up for Izuku and accidently hurting a student for not having proper control over their Quirk.

Hayden ended up getting expelled and moved to America. When Hayden figured out he was Non Binary, he chose an American name.

Izuku is FTM Transgender.

Hayden is a bit taller than Izuku and a bit more masculine looking. Hayden has a shit ton of freckles.

His Quirk is basically Pyrokinesis. He can create and control any type of fire. The drawbacks being burns, headaches, and losing control. He can change the colour of fire, but there is no true meaning behind the colours.

Hayden would be 5'7 when he's first seen, while Izuku is still 5'5. They will both grow to be 5'10 although.

Hayden is a bit older by two minutes.

Hayden moves back to Japan after something happening to his Dad, Hisashi who is also known in America as the pro hero Spit Fire, while out on patrol. Due to Hisashi being injured and in no form of being able to take care of Hayden for the time being, he sends him to live with his Mom, Inko.

Nobody has to worry about a bitchy Inko or abusive Hisashi as they will both be good parents in this au.

Hayden ends up making it into the hero course after being transferred after the USJ attack.

The dorms would have been just installed, so Izuku would be living in the 1-C dorms, and Hayden will be in the 1-A dorms.