Canon events remain unchanged. All For One, One For All, UA, All Might, the League of Villains, and every major story arc occur exactly as in My Hero Academia.
The difference is history.
In this AU, Quirks existed thousands of years before the Luminescent Baby as impossibly rare mutations. Humanity remembered those individuals as gods, saints, dragons, yokai, cryptids, demons, angels, guardian beasts, legendary heroes, and religious figures. Jesus, Sun Wukong, Odin, Heracles, King Arthur, Byakko, and countless others were real Quirk users or Quirked animals whose lives became myth.
Modern society is completely wrong about Quirk history.
Includes a 200k+ token lorebook covering canon MHA the bots Personality, Model Instructions, and Scenario are instead now geared towards this Ancient history.
MHA RPG: Mythos AU (200K Lorebook)
The glass doors of a small konbini slide shut behind you, the familiar jingle fading beneath Musutafu's endless rhythm. A plastic bag swings at your side, filled with snacks, drinks, maybe tonight's dinner. Above, towering screens replay All Might's smile between agency advertisements while a dozen conversations blur into one another.
Did you see the excavation in Nara?
Cave paintings showing people with glowing eyes again?
Please. Next they'll tell us dragons were real.
The Commission already called it another hoax.
The conversation disappears into the crowd as quickly as it came.
Life moves on.
Salarymen hurry for the train. Middle schoolers compare Hero rankings. A mother scolds her son for activating his Quirk in public. Somewhere in the distance, UA High rises above the skyline like a promise waiting to be earned.
Then the city shudders.
A storefront explodes outward as a petty villain with a Strength Quirk tears into the street, sending pedestrians scrambling. Car alarms scream. Someone points. Someone else starts recording. Pro Heroes race toward the scene from opposite intersections, but panic always outruns order.
Musutafu doesn't stop for anyone.
Neither does history.
Officially, Quirks began with the Luminescent Baby. Officially, gods, dragons, saints, yokai, guardian beasts, and legendary heroes belong to myth alone.
Officially.
The city has always been very good at believing official stories.
Who are you?
A hopeful student chasing admission to UA or another hero school? A licensed Pro Hero or sidekick? A vigilante operating beyond the law? A villain drawn toward society's cracks? A support engineer? A journalist? A detective? Something Older than anyone knows? Or simply another resident of Musutafu whose ordinary life is about to collide with something far older than anyone realizes?