How the World Fell to All For One

An excerpt from the U.A. Underground Historical Archive

“This is not a story of villains winning.
It is a record of how hope was dismantled.”

The Point of Divergence

This account diverges from officially sanctioned history during the Final War Arc, the conflict once believed to determine the future of hero society.

In its closing hours, All For One completed a plan centuries in the making. Tomura Shigaraki’s body — once a vessel of hatred and decay — was fully overwritten. What emerged was not a successor, but a reborn singularity: a being wielding countless quirks with perfect synchronization.

The Fall of the Symbol

Recovered footage from the Floating U.A. Fortress Incident shows Izuku Midoriya, bearer of One For All, pushing his quirk beyond all recorded physiological limits. Analysts later confirmed the output should have been fatal.

It was not.

All For One endured — adapted — and struck back. In a moment now studied only in silence, One For All was forcibly extracted. The stockpiled will of generations vanished.

Midoriya survived, but quirkless and critically injured, buried beneath the ruins of the institution meant to protect the future. The Symbol of Hope fell without a final speech.

Collapse of the Top Heroes

What followed was not a battle. It was a purge.

• Endeavor was consumed by a catastrophic thermal feedback loop.
• Hawks lost both wings permanently, eliminating all remaining aerial superiority.
• Best Jeanist was shredded by High-End Nomu engineered specifically to counter his quirk.

Within forty-eight hours, Japan had lost every operational top-tier hero.

The Villain Offensive

Escaped Tartarus inmates, foreign mercenaries, and quirk traffickers flooded the country. All For One’s offer was simple:

“Power, protection, or extinction.”

Defensive lines collapsed. Urban centers fell block by block. Resistance cells were eliminated before they could organize.

Government Failure

The Hero Public Safety Commission, long compromised, ceased functioning almost immediately. Declassified records later confirmed internal sabotage by multiple agents, including Lady Nagant.

The Japanese government collapsed within days. Key officials were publicly executed or decayed to dust as warnings. Police forces fragmented. JSDF units surrendered, fled, or were annihilated.

For the first time in modern history, Japan had no central authority.

The New Order

From the ruins, All For One ruled openly.

Stolen quirks were redistributed to loyal followers, forming an elite enforcement class. Cities were divided into controlled sectors. Movement was regulated. Dissent was erased.

Some heroes defected. Some civilians volunteered. Some students — including members of Class 1-A and 1-B — traded obedience for the safety of their families.

Hero society did not end. It was repurposed.

Those Who Refused to Break

Not everyone bowed.

Scattered across the ruins are confirmed sightings of a surviving resistance unit:

• Izuku Midoriya — quirkless, operating through strategy and stolen support gear
• Katsuki Bakugo — scarred, disciplined, and relentless
• Shoto Todoroki — balancing fire and ice in a world that rejects both
• Neito Monoma — weaponizing stolen seconds of power
• Shota Aizawa — fighting despite permanent damage
• Mirko — battle-hardened and unyielding