Another failed Noumu. All for One tilted his head to the side watching the Noumu twitch helplessly on the floor. He had put in four powerful quirks in this one. He placed his hand on the noumu's head and activated his quirk. The Noumu trashed as its quirks were forcibly removed from its body.

After retrieving his quirks, All for One teleported himself to his lair grimacing slightly. That particular quirk was painful. He could teleport bit the farther the distance, the more pain he'd recieve. It wasn't Kurogiri but it'll do. He sat on his throne and began reviewing his quirks. He had reached his limit. Nobody knew this little secret but he had a limit of quirks he could hold at once. There was a time this wouldn't have been a problem but after his battle with All Might, he had trouble holding more than fifty quirks. If he holds more than fifty, his body will start protesting with pain wracking his body.

He began reviewing his quirks looking for one to let go. He wasn't comfortable with his quirks so close to fifty one. He latched onto the most useless quirk in his body - Stall. Stall was a quirk that impedes the growth of a human including the quirk of the person. But it had a drawback. It can only be used on one person. He would have used it on All Might but he had someone whose quirk he couldn't let manifest. His great grandson.

At the beginning of his time as All for One, he had fallen in love. With Sakura. His beloved. He had born a son who inherited his quirk. A rival gang had killed his wife to get at him. He had decimated and razed them to the ground. This had been the event that made his brother turn on him. After he had killed his brother, he had made a vow to never kill anyone of his blood. He had also realised how his quirk can be turned against him. So he had taken his son's quirk and gave him another. His son's body had been born to hold multiple quirks so there weren't any side effects. After his son's son had displayed his quirk, he had stolen it and gave him a fire breathing quirk instead. His great grandson had displayed signs of his quirk too but it had mutated and he hadn't been able to steal it. He couldn't kill the kid either so he used the Stall quirk to stall the growth of his quirk.

He couldn't hold the quirk any longer. If he continued to use the quirk, the backlash could kill the kid. After much contemplation, All for One released the quirk. He watched as the quirk slipped out of him and dispersed into the atmosphere. If the kid killed him at least it was better than All Might. He turned on his computer and turned on the mic for Kurogiri's bar. There was work to be done.

When Izuku woke up the world was different. Brighter. Sharper. Someone flashed a light in his eyes and he groaned struggling to sit up. "Take it easy young Midoriya." Izuku glanced to the side to see a doctor smiling gently down at him. The door to the room burst open as his mom rushed in crying tears of joy before she hugged him nearly squeezing the life out of him.

"Izukuuu!" Inko cried as she hugged him. That was the moment Izuku noticed what was different with the world. "Hahh!" He screamed in fear. His mom jerked back muttering apologies as she checked his body for any injuries.

"What's the matter young Midoriya?" The doctor asked staring intently at him.

"You all have lights inside you!" He exclaimed.

"Ah! Your quirk must have manifested then." The doctor nodded smiling gently.

"Huh?"

"Izuku" his mom said "what do you remember?"

"I remember going to sleep." Izuku frowned.

"Yes. That was three months ago."

"WHAT. THE. FUCK?!"

"Language young man!" Inko knew Izuku wasn't someone who swears but her Izuku was now very different.

"I don't understand." Izuku watched his mom in confusion.

"That night before going to sleep, I decided to check on you and saw you convulsing on your bed so I called an ambulance. After a series of tests, it was discovered that something -probably a quirk- was hindering the growth of your body and after it was lifted your body was forced to grow to where it was supposed to be. Your body underwent years of growth in minutes." Inko looked at Izuku with a teary eyed as he eyed her in confusion. "After an x-ray, it was discovered that you have one joint in your pinky toe."

"But that would mean-"

"Yes" Inko sighed. "You have a quirk."

Izuku was confused. "But Doctor Tsubasa said that I was quirkless."

"About that, the police thought it was suspicious so they investigated Doctor Tsubasa. It was found that his real name was actually Kyudai Garaki." Inko explained. "He was a villain connected to various villains and crimes. The police are searching for him right now."

"So what does this mean?" Izuku asked.

"The police said Doctor Tsubasa was using you for some sort of experiment." Inko said.

"So I have a quirk."

"Yes."

Izuku fainted.

Author's Note: Welcome to Unstoppable. Please do stick around as we set the stage for the best story you will ever read.

Nefarious Out.