The quirk their hero: arsenal

Afo's disappearance

Izuku woke up when he heard the door open and shut. Izuku looked around to see his dad enter. Izuku was wondering why his dad came home so quickly when he realized it was his birthday. Izuku smiled happily and ran to his father. Hisashi smiled and knelt down to izukus height. Hisashi reached behind him and brought out a gift box. "Now izuku. Don't tell your mother I bought this for you ok. She might kill me realizing I got this for you before her. Now let's go down and eat." Izuku nodded and went down stairs to the kitchen to see breakfast served. It was pancakes and orange juice which was one of izukus favorite breakfast item. Izuku ate his breakfast, releasing happy aura that were visible to the naked eye. After eating said breakfast, inko went into the kitchen to do the dishes while izuku went to his room and opened up the gift box. Izuku unwrapped the paper and saw a premium allmight figure izuku wanted for as long as he was alive. Izuku smiled and started to jump around with the figurine in his hand. Hisashi smiled as he saw this and called izuku to his car. They all went to the quirk analytics and waited. Izuku went to the x-ray room while the parents waited.

...sometime later...

"You should probably give up."
The doctor, as if he said this a million times before, breaking izukus dream into a million pieces.

"N-nani?"

"Well here you see in the picture, izuku has a extra pinky toe joint. When humans developed quirks, we promptly lost this trait and those with no quirk hold this trait."
the doctor quickly said.

He tried explaining more but before he could, Hisashi got up and left. He drove roughly with visible killing intent in his eyes. Inko quickly slapped Hisashis shoulder to get him out of his trance. Hisashi made a turn while speaking to his son.

"Look izuku. I'm not mad at you or sad about the fact that you're quirkless. I just don't think the doctor should've brought it down on you like that. You can,.. you can still be a hero without a quirk. What a true hero is somebody who'll save anybody without a second thought."

Izuku looked at his dad and smiled as he was now encouraged. Inko smiled at her husband and followed up with,

"Exactly izuku. Having a quirk will lead someone to become a hero easier bur that doesn't mean you can't be a hero."

Izuku smiled and his mood brightened up.

...night...

Hisashi was sitting on the kitchen table with all the lights off. Izuku and Inko was already sound asleep. Hisashi looked at his wall with piercing green eyes that could install fear in anybody. He used the many quirk he had on him to look out side. As he guessed, there were many heroes that were trying to sneak closer to his house. He expected this to happen but not this early. Hisashi then looked up to see izuku sleeping peacefully with his new all might figure. Hisashi knew the chances of seeing his family now was near impossible. Hisashi walked inside izukus room and sat at izukus bed. He looked at his son and sighed. Even tho Hisashi was the symbol of chaos, he loved his family. Hisashi knew the chances of izuku being a hero without a quirk was close to non. He also knew that his son would be bullied and ridiculed for being quirk- less. Hisashi stretched his hand to izukus forehead and activated one of his quirk. Afo then realized something. Izuku did have a quirk. It was just very dormant and would not bloom until he was in his mid 20s. The reason being was that this quirk was to strong for izuku. Afo tried to know what the quirk was but it back fired. As soon as he tried, he realized his power was going away. But, he was to late. By the time he stopped, all for one was absorbed by izuku. Afo was shocked but he didn't mind.
A strong dormant quirk that was strong enough to absorb all for one and a  pure soul like izuku would make him one great hero. Afo sighed and left izukus room.
Before leaving, afo wrote a note for izuku and left. He then embarked his Afo side and left.