Chapter 1 The Grey

I don't own Dragon Ball Super or My Hero Academia

In all his life Izuku Midoriya wanted to be a hero like his role model All Might, but then he learned he is quirkless and was told he could never be a hero, he was bullied because of that even by his former friend Katsuki Bakugo, years later he met his Hero All Might after he rescued him from a slime villain, he learned of his secret and he told him that he couldn't be a hero too destroying his dream saying he should be realistic.

Izuku was now in a crowd of people and saw the same slime villain has Bakugo trapped and he was worried, the heroes were too busy or couldn't fight against him saying that they need someone with the right quirk. then his legs moved making him run towards the villain while they shout at him to stop, he then saves Bakugo by pulling the slime off him.

"Deku!"Bakugo said.

Izuku cries saying:"I couldn't let him kill you."

The villains tries to get them but the two teens vanished surprising him."what?!"

They were far from him and everyone saw who saved them, it was a big muscular man with a costume that was black and red with white gloves and boots, he turns around to see he was bald with white grey skin and his eyes were pure black.

"Wait who is this guy?"Kamui Woods said.

"Is he a vigilante."Death Arms said.

All Might in his skinny form was nearby and he couldn't believe the speed the guy just did.

"So another hero came."the villain goes towards the unknown hero who turns back at him.

"Stand back."he said to the two and he raises his arm up, then he punches the air making the villain get blown away.

Everyone got shocked and All Might said:"he didn't even hit him."

After he was captured the heroes were talking to Izuku and Death Arms said."that was stupid what you did, running in and getting yourself and the other one killed."he then looks at Bakugo."hey that's a interesting quirk if you need a agency for you future."

Bakugo got angry but then he got punched in the back of the head by the stranger shocking them."your an idiot."

"What was that?!"Bakugo got mad.

"You heard me, you were throwing tantrum and destroying everything around you in a attempt to get the villain yourself."the guy said.

"Hey, he was desperate."Kamui said.

"That's no excuse."he glares at the hero scaring him."you act like he saved the day but he didn't."he points at Izuku."this young man over here went foward and saved him, that's the true meaning of justice, a hero."

That surprises Izuku to hear those words, he then cries a bit of joy since this was the first time someone said that to him.

"But he doesn't have a quirk."Death Arms said.

"So, I don't have one too."he said shocking everyone.

"What, but that's impossible that punch you just did and your look."Mt. Lady said.

"I'm what's called an alien."he said.

"An Alien?!"they all said.

"Yes, I am Jiren a member of the pride troopers."he crosses his arms."I came to this world to see these so called heroes but all I saw was greed and cowards, I heard you all say you were going to wait until someone came with the right power, such stupidity."

He then walks away and Death Arms said:"hey you can't just leave."

"I'm above your rules."Jire kept going and he looks at Bakugo."your no hero."that made him mad.

Later it was the afternoon and Jiren was all alone in the beach that was full of trash, he kicks a fridge up and blasts it with a ki blast.

"Excuse me."he looks back to see Izuku again.

"You."Jiren said.

"I wanted to know, is the power that you used something anyone can do?"Izuku asked.

"Yes, with the right training even you can use it."Jiren said.

"Then."he then bows before him."please take me as your student."that surprises Jiren a bit."all my life I wanted to hero but I was shut down and laughed at for being a quirkless so please, let me help my world by being your student to get stronger."he then looks at him crying.

Jiren stares at him then he has flashback of a similar scene with him as a child and his old master.

"Very well."Jiren said.

"Really?"Izuku said with a smile.

"Yes, but I will not be easy with you, as I will train you to be one of the strongest heroes, there is more threats out there than just here on this planet."Jiren said.

"I'll do it, even if I'm broken to the last bone I won't give up."Izuku said.

Jiren smirks since he's a true hero on the inside.

All Might was trying to find Izuku."where is he?"he wanted to pick him for the next heir of his quirk, then he sees Izuku kneeling before Jiren."no."

Jiren then takes Izuku with him and they vanish to talk more in a certain place.

Note:this a idea I had in mind for some time, I will see if I'll continue it or not but it's basically what if Izuku met Jiren instead of All Might giving him one for all, this is still universe 11 it's just the Earth is the My hero Academia one there.