mitt's Favorite

So there is this boxing guy who is pretty strong, he was cute i guess? As he was walking out like normal person would but suddenly he saw a girl falling from the building, without hestitation he goes there and tried to help the girl from the fall but that decision leads to his death but strange things happen...
He suddenly gets into the girl's body, the one he was trying to save, how will he live his life from now on as a teenage highschool girl?
I am just kidding about the guessing, i just forgot the title and need a little help ╮(￣▽￣)╭