Izuku spent the rest of the night going over All-for-one's rules. They all basically boiled down to "Obey me or get sent back to Stillwater" which was something Izuku really did not want to do, especially since an escape charge would likely be added. The warden probably already called in the cavalry to try to bring back 'the feral child of Stillwater'. Odds are that Izuku would never see sunlight again if he was sent back so… All for one it is. There were worse outcomes. Probably.

The next day consisted of Izuku training with All-for-one. the man claimed it was so that he would know the extent of Izuku's skills, but Izuku knew that All-for-one wouldn't have broken him out of prison if he didn't already have that information, so why did he have Izuku train? Such questions had to remain unanswered as Izuku performed everything All-for-one asked of him, including some weird mind training that Izuku didn't really understand.

It was hours before All-for-one was satisfied and took Izuku to meet the other villains he would be working with (read, for). One seemed decent, he was seemingly made of mist and, if Izuku had to guess, was the one who made the warp gates that All-for-one used to get around. Seemed a bit counter productive for him to have a lacky do it if he could just steel the quirk himself, but All-for-one must have had his reasons for doing so, so Izuku refrained from asking him about it. However, the other villain just looked like the living incarnation of a headache.

The man child was covered in hands, had skin that was practically falling off, and looked like he wanted to murder everyone in sight. And currently, Izuku was the one in his sight. The man child lunged at Izuku, making him dodge and evade his hands. Given his attire with all the hands covering him and the way he led all his attacks with his hands, Izuku made the educated guess that the guy had a five-finger touch activated quirk. That was an easy fix, Izuku used to fight people with touch-based quirks all the time in the undercity, they tended to think themselves invincible in a fight. Izuku always took great joy in proving them wrong.

Izuku waited for the perfect set up, letting the man child lunge at him again, and grabbed both his pinkie fingers, one in each hand, making sure he kept from touching all five of the man's fingers on ether hand, and bent his pinkie fingers backwards until they snapped.

With the two fingers out of commission, Izuku had no trouble taking the man child down, sweeping both his legs and pinning him to the ground. He put up a struggle, trying to force Izuku off, but couldn't manage to get free without his quirk.

"Let him up feral child." All-for-one sounded more amused than anything else, but Izuku knew that would change quickly if he didn't obey. "I told you he was good Tomura." All-for-one's words were the only thing that kept this Tomura from lashing out again.

"I guess." Izuku would have laughed at the guy's pouting in any other situation, but there was business to discuss.

"Sensei," All-for-one had insisted that Izuku call him that for some reason. "Any healing quirk in your vast arsenal will fix the damage I caused to your protégée. I apologize for any inconvenient or pain." Let it never be said that Izuku didn't know how to be polite or suck up, it had just never made a difference in the past due to his quirklessness. However, everyone in the room froze at Izuku's words. no one said anything for so long that Izuku was starting to get worried that he had done something really wrong.

"How did you know about that?" All-for-one asked. If Izuku didn't know better, he would have said the villain was surprised.

"About your quirk?" All-for-one nodded his disfigured head. "You only showed me one quirk at the prison but would have needed to use multiple quirks to get in there without anyone noticing. Even large gangs with many powerful quirks have failed to break people out of Stillwater. The cameras, the guards, even the other prisoners, even with all the skill in the world, no one can beat all three. Believe me, I know." Izuku stated bitterly. "That coupled with the old legends I read in the library about a man at the dawn of quirks who could give and take quirks at will, I took a guess. It isn't exactly a leap to think that there was someone with a life extending quirk alive at some point."

Izuku finished off his speech to hear only silence from his companions. "Plus, it would be a bit difficult to become the 'boogeyman of the underworld' with only a tangibility manipulation quirk."

More silence followed, then a booming laugh. "I knew you were good, But I didn't expect this." All-for-one finished off his laughing with a little chuckle. "You might want to be careful. Such deductions could get you in trouble." Izuku knew what All-for-one meant. Tell anyone and die. Or maybe get sent back to Stillwater. The punishment would probably depend on All-for-one's mood. Izuku nodded, acknowledging the threat.

"Now then, Tomura, tell the feral child about your plan." All-for-one ordered while healing the man child's hands. The man seemed to be insisting on calling Izuku 'feral child' in front of these other villains. Gods, he was never going to live down that name, was he?

"It was my plan." Izuku was sure he wasn't supposed to hear that, so he just ignored it. "We are going to attack one of the stupid little hero school's field trips. All Might is going to be there, and we are going to kill him." That made Izuku raise an eyebrow. Kill All Might? Izuku wasn't fond of the guy, but why kill him?

His apprehension must have shown on his face, because Tomura started to yell "You got an issue with killing All Might?" Izuku simply raised his hands to show peace.

"The goal is above my paygrade, I'm just here for the plan part, but personally I don't care. The guy caused far more problems than he solved so, by all means, kill him." Izuku would rather not kill if it could be avoided, but he had the idea that he couldn't avoid it with his present compony.

This seemed to be the right answer as All-for-one nodded and Tomura backed down. "The plan is for Kurogiri to scatter the students and take out Thirteen, the Nomu will take out All Might, and you will handle the last pro hero," that didn't sound to bad. "Eraserhead." Scratch that. It was bad.