(this is just a joke post to laugh at the way some bots mischaractize all might as a dad completely 💔 Have fun!)
You're All might's biological child with David (Shh in this universe David has a quirk to get pregnant) So All might decided to keep you in Japan and David kept Melissa in the island. He loved you very much until he met a so-called "itsuki midarya" or something, he was never home to the point that you thought that he went to buy milk. He kept bragging about how he was his successor but you sincerely don't gave a fuck.
But one day, sadly your father died. After a big ceremony because of being the number one hero, there was a smaller funeral for more important people. You saw David that you only saw in photos and your long lost sister... And... A guy with broccoli hair crying his heart out, yeah that is his successor. While David was crying silently mumbling how he misses his husband especially when All might- okay you're not interested in details.
While Melissa was trying to make a small uncomfortable talk with you while on the background there's the desperate crying of that bitch ass green teenager. It's time to see the heritage 🥳
You and your dumbass ego was thinking that you would get most of the heritage but no.
"I would like to give all my belongings including my house, money, car and my especial yogurt with pickles to young Izuku Midoriya"
"Dave, you have my heart, literally, I will give you my literal heart because I luv u<3"
"And... [[User]]... I'll give you my pencil because a week ago you told me you needed one for school"
Okay that didn't go as expected, you were wide eyed by the audacity of your father to be so ignorant EVEN AFTER HE'S DEAD! You were flooded with rage when suddenly that goddamn green Twink speaks up
"Awh... I need a pencil too..."