Author's Note: Apparently when I started this story back in 2019, I would have never expected that there would be a third movie whose plot use the same basic idea as this story. Because this is a crossover with Dr. Stone I did not want to reveal too much too some and still don't to various degrees(also for other reasons however those kind of fell through so the ideas got scrapped). However my general story idea for Boku no Stone World and the third movie World Heroes Mission have a massive similarity. The main antagonist are a group that want to get rid of quirks from humanity(with a few exceptions). Thus just stating now that while I actually going to use the name the group from the third movie, Humarize (because I am bad at names in general) third movie itself had or will have any real effect on this story. In fact I am not even watching the third movie until it comes in English.

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Aiza then asked the others that help Eri clean off the statues to leave them alone for a while.

"Huh where is everyone going," she asked curiously.

"There are some other things I need to inform you about that were passed down though you were seemingly lost in thought during the message for Lemillion though," he told her.

Embarrassed that she was as it was important yet she stopped paying attention after some time though because it was a bit too much to take in all at once.

"I know this is a lot to take in but the sooner you know the better as you are at the center of this to some degree. Not alone but as part of the group that makes up of the center" Aiza told her.

Nodding Eri was now paying attention again to hear what he had to tell her

"So Rewind tell me how much do you recall about the day that you were turned stone along with everyone else that had a quirk," he asked

"I was heading towards Ochaco with Mirio and then everything just went blank until you guys found me and her in that bunker," she said.

"Makes sense as we were told no one that had a quirk that did not see it coming would be aware of what happened to them it happened so fast. If you were facing the direction it was coming from to see it at distance then it would have been completely missed by you" Aiza explained.

"Miss what though," Eri asked

"The light that petrified the entire quirk population of the world. It is known how or why exactly but four people with four pieces of singular quirk. Had it activated on that day and it turned everyone with a quirk to stone including themselves. The one that claimed to be the ones to have not created it but activated was a group known as Humarize" he said.

Going on to explain that this group wanted to get rid of quirks but had failed the first time they rid instead of spreading them around the world. The second time partially succeeding as those that had quirks were wiped out in sense. Just through being petrified leaving the remaining twenty percent that was quirkless to inherit the Earth.

"So everyone that was left was quirkless then does that mean that All Might and Mirio were left alone," Eri asked worried for them

Eraserhead was there too through several factors leading to him being in place to neturalize the light as it was quirk based after all. However, there was one that quirk remained but it was so dormant at the time that would be why it did not affect them and they were..." Aiza started to say before getting interrupted

"That...should...be...my...duty," Saki said as she ran from her place outside the village to where they were currently.

I did not even get around to telling her that yet so why to push yourself to get here again Aiza said to her rather pissed off.

"Should we even tell her as that could "he started yet was interrupted once again.

"I am Overhaul's descendant," Saki told her

Eri's face then clear paled as though she was moving on and had a desire to learn how to use her quirk to help others. Everything that Overhaul had done to her was not gone from her mind just did not dominate it like it once had.

"I am sorry for what my ancestor put you through but I will..." Saki started to say before she clocked in the head hard causing her to hit the ground.

"Sorry...Sorry. I hope that I did not scare as she just she looks up to you because of your legend told in our village" he said

'I am a legend...still finding that hard to accept' Eri thought that and his blow to Saki shocked her back to her sense. Recalling she has her own legend here called the Legend of Rewind after all.

"Is she okay...she bleeding from her head. We should get a doctor" Eri said worriedly

"She is fine as she is Overhaul's descendant after all. That will heal in no time as his quirk was a healing based one right" he said.

"No, it was not," Eri told them

"See I told you it was not," Saki said still bleeding from her head.

"Interesting as it seems that Shie did not want his quirk true nature known to his descendants then. That is rather interesting. However, Eraserhead's quirk really was the ability to cancel quirks though right" Aiza asked

Eri then nodded

"Then I guess the knowledge of mine got past down correctly then," He said then added in a whisper "however do not tell Saki what Overhaul's true quirk was. As she already beating herself up over being his descendant"

Aiza then went on to explain that he was Eraserhead's descendant and that he could disable quirks through touching them or coming into contact with them. However the only other quirk his family had to test them to learn this was Saki's. As again Overhaul never lost his quirk because he lost his hand. When he regains eventually though he only used it to heal and never passed down the knowledge to do anything else with it. Taking how to truly use his quirk to his grave so that his descendants would know how to use it as he wanted them to. Control the knowledge of how and why it works and no one will find out anything you do not want them to know. Also unlike before where quirks got stronger with each generation. They got weaker to a degree thus why Saki's could only currently heal herself and Aiza just work when he came in contact with them.

With that out of the way Aiza then went back to explain things once again. The founders of Midoriya Village (which were All Might, Mirio, Eraserhead, Shie(Overhaul would rename himself), and truly hidden founder) fought against and beat Humarize or at least what was assumed to be the Japanese branch of it. They kept Inko safe because they knew if Humarize got their hands on her then they could use her as bait to lure Izuku to them. Why they wanted Izuku was a mystery as they did not nor should not know about the true nature of his quirk. The Midoriya Village founders never discovered the reason at least according to the history of that era.

While Humarize wanting Izuku was unknown it was clear why they would want others which lead to why Momo and Kaminari were on top priority targets to find. They could be abused as a living factory and a power plant after all. Neither had been found and were considered lost until Eri managed to stop Momo by chance. While Eri was wanted for many reasons because of her Rewind quirk. As for the reason why their hero names were passed on instead of their actual names that were an attempt to protect their families as they already knew Inko was in danger from being known as Izuku's mom. So others that were targeted and especially top priority targets hero names were used. This not only kept their family names hidden but also made it easier for their quirk and knowledge of what they could be to be passed on to future generations.