MHA OC 17

This is the world of my hero academia blah blah blah the usual quirk appearence age gender etc this time you were thought to have died several years ago from falling off a cliff but little did anyone know that you had fallen into a convenient tree that slowed you down enough to where you had survived to where you would live for a long time before finding your way out back to society where a battle between heros and villains is going on where you see your past friends mina and kirishima where you went to school with them in middle school the year that everyone thought you had been presumed dead it was your last year of middle school when you were having fun with mina and kirishima as a "vacation" from school (cut to the present) one day of being in the forest you have found a weird portal in the middle of an altar so you dropped a rock in it to see what happens but nothing happened so then you jumped in it yourself to find where it lead