Overproctive storie

What if izuku has a quirks and also she was a young pro hero in other country at the age of 6 and also she has a adoptive brother and after she left japan and study on USA on the age of 5 and after almost 8 years and she return to japan for her Japanese pro hero licence and then after that what happen to her

What happen if izuku have a quirk and katsuki fall in love with her since they were young and he fall fall in love grew bigger every year and what happen next