*Hisashi POV*
I woke up to the sound of my alarm clock beeping, and i immediatly smiled thinking of my plans for the day. I opened my phone and looked at my lock screen, a picture of izu, and my homescreen, another picture of Izu. I then looked at my large collection of photo's of him in my camera roll.
It was 8 am by the time i got out of bed. I dressed in my suit and mask, and used the bathroom. I walked into the bar, and to my surprise a half hour early, everyone was up and waiting for me. We had breakfast, and by the time we were finished, it was time to get going.
*Time skip to U.A* *Izuku POV*
At 8 am the bell signaling the start of class rang and everyone including me were sitting and chatting, when Aizawa entered the room, and told us we had a partner study block, where we would be able to study with the help of our classmates, as long as we weren't to loud, because we had a test coming up, and Aizawa had work to catch up on.
A short while later, there was a knock on the class room door, Aizawa went to open it, and there was All Might, he had come to observe the class, because he had to be ready to subsitute for Aizawa in a few days, he wanted to know how to teach this class well. He went around the room, looking at what we were doing, and asking us questions.
Soon after, All Might came to observe our class, there was a loud bang, the door slamming open. Everyone thought it would be Present Mic, because he likes to be very dramatic. But when we looked up, we saw the most powerful villan, and his league of villans, (just want to let everyone know that i've changed things up with the league of villans, some are not arrested, some are part of the league who in canon were only in the vangaurd action squad, an some who in canon are in the league aren't mentioned in this story.) All For One, Dabi, Tomura Shigaraki, Himiko Toga, Kurogiri and Muscular.
"Hey! Everyone stay back and do as I say. All might said, trying to be confident, even though he was scared for his life."
"Now, relax All might. I'm not here to hurt anyone, or cause any harm. I am here to see my son."
"Your son? Who?" All Might and Aizawa said at the same time.
"Oh, hah, you'll get a kick out of this, just watch."
*Author POV*
Hisashi slowly walks over to his son and reveals his face.
"Dad?!"
"WHAT!!!!!!!" Everyone in class 1-A yelled
"Yes, it's true, he's my baby! I haven't seen him in so long" Hisashi said slowly running his fingers through Izuku's hair.
Turning to All Might he said, "I have one question for you, All Might, is my son your succesor? I know that your quirk can be passed on, because as you know I created your quirk, and gave it to my brother who then passed it down, and eventually it got to you, the 8th user of One For All. I have seen him in action, in videos, and I have to say, his quirk looks exactly like yours. So tell me, tell us all, is Izuku your sucessor?"
"Yes," everyone in the room gasped "I knew he was the right person to be my sucessor when he saved young Bakugou, even though he was quirkless at the time, he ran at the sludge villan, before he could even think, and he saved bakugous life."
"What! woah!" exlaimed everyone including Aizawa
"I gave him my quirk just before the entrance exam, for training his body to be able to use my power, he cleaned Dagobah Municipal Beach Park, and surpased my expectations."
"Whoa dude, Midoriya, that's so manly!" A faint "good job deku." could be heard from behind Izuku.
"Dad, I don't like that you're a villan, but I still love you." quiet "awee"s could be heard from all around the room. "I want you to know that nothing you can do will make me stop trying to become a hero, I will never be a villan. I don't like that you hurt All Might, but at least you can't hurt him anymore...."
"I need you to do something for me.." Izuku said with his head down
"Anything for you, Izu."
"You too All Might" his head still down "Anything my boy."
I need the both of you to please get along with eachother, not just because I am All Mights sucessor, also because, me, mom and All Might live together, because they're married. I call him papa.."
With that, Hisashi broke down into a crying mess, on his knees, his head resting on Izuku's lap, and Izuku holding him.
The love of his life was with another man that could make her happy, and to make matters worse, it had to be his worst enemy, and that man was a better father than he could ever be.
"She hates me doesn't she?" Hisashi quietly asked. All Might replied in a sad tone "We don't talk about you, so I don't know very much about her feelings towards you. But I don't think sje hates you, unless, she knows that you are All For One. I'm not sure if she knows that, but she has said many times that she hates All for One. I have no idea if she knows it's you."
"Did you know that I am Izuku's father?"
"No I didn't, not until now. I never knew your true identity"
"I'm so sorry Izuku!" Hisashi cried as Izuku held him tight "I'm so sorry I couldn't be there for you and your mom, I'm so sorry that I couldn't be a good father and husband. But I can tell that All Might makes her and you happy, happier than I could've. So All Might, I never thought that I would say this to you, but thank you for giving my son the future he wanted, and being the father he needed, and the husband she loves. More than she ever loved me..