Our story in this universe begins right after Izuku risked his life to save Bakugo from the Sludge Villain.

The pros were berating Izuku for risking his life, even though he saved Bakugo's.

"You idiot! Do you have a death wish or something?!" shouted Death Arms.

"You should've let us handle it, kid!" shouted Kamui Woods.

Izuku noticed that the other pros were praising Bakugo for illegally using his quirk.

"Your quirk is amazing, kid! When you go pro, you should intern with me!" said one of the pros.

After that Izuku went home. All Might saw him walk away and thought about following him.

'Maybe I should give him One For All. No, he was being too reckless. He can't be a hero. I should go see Nighteye now and meet the kid he recommended to give One For All to instead' said All Might as he went in the opposite direction.

A few minutes later, Izuku was almost home, when he heard footsteps coming behind him.

He turned around to see Bakugo running up to him.

"DEKU! YOU THINK YOU'RE BETTER THAN ME JUST 'CAUSE YOU SAVED ME?! I DIDN'T NEED YOUR HELP! AND I DON'T OWE YOU ANYTHING! GO FUCK YOURSELF!!!" screamed Bakugo before flipping him off and leaving.

Izuku then went home. As soon as he entered his room he tore down all his All Might posters and destroyed all his All Might merch.

"I saved Kacchan and those pros yelled at me for it?! And Kacchan gets praised for illegally using his quirk?! And to thank me, Kacchan tells me to kill myself again?! I'm done with everything!" Izuku said to himself.

A few days later...

Izuku was walking home from school, when suddenly a warpgate opened up in front of him, and Shigaraki and Kurogiri stepped out.

"W-Who are you people supposed to be?!" asked Izuku.

"My name is Tomura Shigaraki, and this is Kurogiri. We're a part of a group called the League of Villains, and we'd like to recruit you" said Shigaraki.

"Why would I wanna help you?" asked Izuku.

"We know what you've been through. That Bakugo kid bullied you years, those heroes yelled at you even though you saved his life, and All Might told you you couldn't be a hero without a quirk. You could be useful to us, we also know that you've taken notes on almost every single hero, including their strengths and weaknesses. With your help we could destroy All Might and this corrupt hero society" said Shigaraki.

Izuku thought about this for a moment. He couldn't handle all the bullying and harassment anymore, and he definitely wanted to get revenge on All Might, Kacchan, and the other heroes.

"I'm in" he said.

"Great" said Shigaraki with an evil grin.

For the next year, Izuku was trained by the League of Villains. He provided them with valuable intel from all the notebooks he had. He was even taught multiple fighting skills by certain members of the League, and he had already killed a few pro heroes, including the ones who yelled at him after the Sludge villain incident.

At UA, Ochako was dead because Izuku wasn't there to save her from the Zero Pointer. Tsu was dead because Izuku and Mineta weren't there to help her at the USJ. And Iida was dead because Izuku wasn't there to save him from the Hero Killer Stain.

Then came the attack on the training camp.

Izuku and the others launched the attack there. Izuku also wore a mask so no one would know it's him. They trapped both Bakugo and Todoroki in Mr. Compresse's ball things, then they escaped through a warp gate with the two hostages.

A few hours later, Bakugo and Todoroki both woke up tied to chairs. Bakugo had explosion proof cuffs around his hands, and Todoroki had ice and fire proof cuffs around his.

"Well now, isn't this something?" said Izuku as he stepped out of the shadows still wearing his mask, with Dabi right next to him.

"WHAT DO YOU FUCKERS WANT?!" screamed Bakugo.

"Well I for one want you to suffer, the same way you made me suffer" said Izuku.

"WHAT THE FUCK ARE YOU TALKING ABOUT?!" screamed Bakugo.

"You really don't get it? Do you, Kacchan?" said Izuku as he removed his mask.

Bakugo's eyes widened. "D-D-DEKU?!" he screamed.

"That's right" said Izuku.

"Bakugo, you know this guy?" said Todoroki.

"Yes, Kacchan. Tell him all about me. How you bullied me for years, how you abused me, how you told me to kill myself just because I was quirkless" said Izuku.

"You told this guy to kill himself?!" said Todoroki.

"And that's not all. One day he was being held hostage by a villain, and I rushed in to save him because the pros there were doing nothing. And you know that they did after I saved his life? They yelled at me and treated me like shit, and they praised Kacchan here for illegally using his quirk on the villain. And what did Kacchan say to me after I saved his life? He told me to go fuck myself" said Izuku.

"I... I had no idea the hero society was this corrupt" said Todoroki.

"That's right. And you could help us take down this corrupt hero society, Shoto" said Dabi.

"Why are you calling me by my first name? Do I know you?" asked Shoto.

Dabi then grabbed a nearby glass of water and poured over his head, washing the black hair dye out and revealing his white hair.

"It's me. Touya, your brother" said Dabi.

"T-That's impossible! I thought you were dead!" said Shoto in disbelief.

"Not quite. I survived the fire. And I want your help to kill our father" said Dabi.

Shoto thought about this for a moment. He did want to get revenge on his father for all the torment he put him through.

"I'll do it... I'll join you" said Shoto.

"Great" said Dabi.

"HALF AND HALF, WHAT THE FUCK ARE YOU DOING?! YOU'RE SERIOUSLY GONNA BETRAY US AND JOIN THESE SCUM?!?!" screamed Bakugo.

"If it means killing Endeavor, I'll gladly join them" said Shoto as he was released from his restraints.

Izuku then turned his attention back to Bakugo.

"Now all that's left is to deal with you" said Izuku.

All of a sudden, the wall burst open. And they saw All Might, Endeavor, Aizawa, and a few other pro heroes there.

"Hand over young Bakugo and young Todoroki" said All Might.

"No. I don't think we will" said Izuku.

Endeavor then noticed Dabi with his true hair color.

"TOUYA?!" he said in shock.

"That's right, old man" said Dabi.

"I... I thought you were dead" said Endeavor.

"He's not. And we're gonna have our revenge on you" said Dabi.

"We?" said Endeavor.

Shoto then shot a giant spike of ice out of the ground and through Endeavor's chest.

"Shoto... why?" said Endeavor with his last breath.

"ENDEAVOOOOOR!!!!!" screamed All Might.

"Kurogiri?" said Izuku.

A warp gate then appeared, and Izuku, Dabi, and Shoto went through it, bringing Bakugo with them.

All Might was enraged.

Izuku and the rest of the League arrived with Bakugo in their Nomu facility in a different part of Kamino. But soon All Might and the others arrived there as well.

The rest of the fight was mostly the same as in the actual show, the only difference being Izuku and Shoto were there fighting along side the villains.

All Might and All For One fought the same, and All Might's skinny form was exposed to the world.

All Might was about to finish All For One off, but right before he could deliver the finishing blow, a bullet pierced his stomach.

All Might then collapsed to the ground. He turned to see Izuku standing there, holding a smoking gun.

"Ah yes, one of our newest members" said All For One.

All Might tried to get back up, but Izuku put his foot down on his back, forcing him to the ground.

"How does it feel, All Might? How does it feel to be quirkless again?" asked Izuku.

"How... do you know about that?" asked All Might weakly.

"I've seen you in this form before, back on the rooftop a year ago. Where you told me I couldn't be a hero without a quirk" said Izuku.

All Might then realized who Izuku was.

"M-Midoriya?" he said.

"It's not Midoriya anymore. It's Deku now" said Izuku.

The news helicopter was filming the whole thing. And the whole world saw Izuku Midoriya about to end All Might's life.

He then pressed the gun barrel against All Might's head.

"This is what happens when you crush someone's dreams" said Izuku.

BANG!

The whole world screamed in horror as All Might died.

"Well done, my... apprentice" said All For One.

"I thought Tomura was your apprentice" said Izuku.

"I think I've found a new one" said All For One with an evil grin.

"I like the sound of that" said Izuku.

He knew All For One was just using him, but he already had a plan to catch All For One off guard and overthrow him, then take his power for himself.

By now, most of the pro heroes were dead. Since Izuku had shared their weaknesses with the rest of the League.

They then grabbed Bakugo, who was still restrained, and opened up a warpgate.

"Time to go" said Izuku.

"I'm never gonna join you" said Bakugo.

"I know you won't. Which is why we're gonna turn you into a Nomu instead" said Izuku.

"BAKUGOOOOO!!!" screamed a voice.

They turned to see Kirishima and Momo standing there in disguises.

"Looks like some of your friends came to help you. They're too late, though" said Izuku before they stepped through the warpgate and brought Bakugo through with them.

THE END

Thx for reading. Also that first episode of What If...? Damn. Anyways, next up is the third and final scenario of what I think could've happened if All Might didn't give Izuku OFA. Peace out.