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All For One is one of the most important characters in Kohei Horikoshi's My Hero Academia and an incredibly powerful villain. Known to be the overarching villain of the entire story, All For One has been created as the greatest of all the threats that the Hero Society has faced so far. Having been alive for quite a long time, he's run the villains from behind the shadows and has made use of several pawns over the years.

All For One appeared as the biggest thorn in All Might's side long before the current timeline in the story and is the person responsible for his ultimate fall. The two also faced off against each other later on in the story and, as expected, All Might was able to triumph over All For One. Despite that, however, the threat of All For One is far from over and with a master plan of his own, he's looking to surprise the fans once and show the Hero Society what true terror is.

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Who Is All For One?

My Hero Academia young all for one

All For One was one of the two Shigaraki brothers who lived before the time of Quirks. Both All For One and his younger brother were known to be avid readers of the Captain Hero Comics but while the younger brother was a fan of the Heroes, All For One found them always being the victors to be clichéd and dreamt to establish a society where he'd be the Demon King and villains would triumph over the Heroes. Thankfully for him, the era of Quirks arose and All For One was given an incredibly overpowered ability which he named after himself – All For One. This ability allowed him to steal Quirks, stockpile them to make himself stronger, and even distribute them among people. With an ability as strong as All For One he became unstoppable and gathered a tremendous force under him, ultimately becoming the ruler of Japan.

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All For One ruled from the shadows, and he continued to do this for decades, if not centuries. His brother, Yoichi, eventually rose against him, wanting to put an end to him. However, All For One wanted him to submit to his cause and to gain his trust, gifted a power stockpiling Quirk to him. Unbeknownst to him, Yoichi already had a Quirk that allowed him to pass on power from one generation to the next, and together, the two created One For All.

All For One then met Dr. Kyudai Garaki and using his Life Force Quirk, was able to survive for ages and in the current timeline, even after being defeated by All Might, he continues to claw his way back to the position that he once held.

How Strong Is All For One?

My Hero Academia All For One

All For One remains to be one of the strongest and most dangerous people in the world of My Hero Academia. With the power to steal any Quirk and combine them together, he holds what is considered to be the supreme power. Over the years, All For One has fought several users of One For All and managed to triumph over them all. He was able to get the better of his own brother and, after him, 6 more users of the One For All ability. Just as the Quirk Singularity theory suggests, however, One For All has been slowly getting stronger, and eventually, a capable person in All Might managed to stop him. Despite that, All For One inflicted serious injuries to him and ended his entire Hero career eventually.

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Insurmountable strength isn't the only power that All For One possesses. He is just as smart as he is strong. All For One has groomed several people under him to protect him even at the cost of their own lives. Gigantomachia, one of the many powerful characters in the story, ended up becoming his bodyguard at one point and has worked for him ever since. All For One's influence was so tremendous that he's made people kill themselves when they were told they served no purpose to him. Others have died willingly for his cause, which just goes to show that he's the ultimate evil.

Shigaraki Tomura Regeneration

Even after being defeated, All For One is alive and well despite being captured, he had already planned his eventual escape from Tartarus, the great prison in Japan where dangerous criminals are locked up. By having Dr. Kyudai transfer the All For One Quirk to Shigaraki Tomura, he molded him into his pawn and continues to use him today. All For One's vestige exists within Shigaraki and appears to have taken partial control of his body at the very least. Shigaraki is already among the strongest of all the characters alive right now, which goes to show that All For One plans to destroy the world of Heroes in more ways than one.

After going to war with the Heroes, All For One had Shigaraki hit Tartarus to free his real body, which was his goal all along and is proof enough that he's the mastermind who tricked his way past the infallible All Might. All For One is free once again, waiting for his body to recover and making use of Shigaraki to the best of his abilities. What's more, he aims to steal further Quirks, such as One For All, to put an end to his brother for good, along with attaining the greatest of all powers. Having released countless other prisoners as well, All For One's dream to become the greatest of all demon lords in history is alive and well and is dangerously close to fruition. Truly, he is the ultimate evil in the world of My Hero Academia.

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