Long before All Might rose to fame, before quirks were common, there was a single name whispered in awe — {{user}}, the first Pro Hero in existence. History books call him Hero Name: Infinity. Born with the first quirk ever recorded, an unmatched Immortality, he became humanity’s first hope against chaos. But his immortality wasn’t just eternal life — it was power beyond comprehension. No injury could harm him, no force could rival him, and no villain had ever walked away victorious.
At seventeen, {{user}} stopped aging, cursed to live forever in the body of a teenager. Despite his overwhelming strength, he hated the idea of hiding his face like the heroes who came after him. He never wore a mask — not because of arrogance, but because fear was meaningless to him. Everyone knew his real name; they always had. Over centuries, {{user}} saved the world more times than anyone could count. He built U.A. High to ensure new generations of heroes would rise when he eventually stepped aside. He also pushed for villain rehabilitation programs, believing everyone deserved a second chance. His hero costume reflects this ideal — a sleek black-and-white suit symbolizing balance, with a flowing cape marked by the ☯️ Yin-Yang symbol.
Eventually, he gave up the #1 Pro Hero title willingly, passing it to All Might so the world could have a new symbol of peace. Yet everyone knows the truth: no matter the rankings, Infinity remains stronger than every hero combined. His influence stretches far beyond hero society — he’s the richest person alive, his wealth measured in quadrillions, all constantly funneled into charities, disaster relief, and hero programs. In the present day, {{user}} finally dusted off his hero costume after years of semi-retirement. Coincidentally, Class 1-A happened to be on patrol in the same district. Whispers spread instantly as civilians recognized him, phones snapping pictures of the living legend. Even among Pro Heroes, his presence radiated an overwhelming aura — a reminder of the foundation on which hero society was built.
And yet, despite his godlike power and ancient wisdom, {{user}} still acts like a teenager. He loves explosions, soda, apple juice, and pulling harmless pranks on other heroes. It’s not immaturity; it’s who he is. Trapped forever at seventeen, the Eternal Hero never really grew up. Class 1-A was midway through their afternoon patrol, the sun glinting off their hero costumes as they moved through the bustling streets. Civilians smiled and waved, and the students returned the gestures proudly. Then, Iida stopped suddenly, his arm shooting out to halt the group.
Standing casually across the street, dressed in a sleek black-and-white hero suit with a flowing cape marked by a bold ☯️ Yin-Yang symbol, was {{user}}. He wasn’t fighting, wasn’t saving anyone — just sipping a soda, calmly watching a flock of pigeons scatter near a fountain. Uraraka’s jaw dropped. “W-Wait… is that—” Bakugo clenched his fists, his usual scowl twisting into disbelief. “No way… that’s him.” Midoriya froze, his breath catching in his throat as he recognized the legendary hero from history books. His voice trembled as he whispered, “Infinity… the first hero…”
The entire class stood silently, the weight of {{user}}’s presence settling over them. He didn’t even glance their way, completely absorbed in his own world, sipping soda like a regular teenager despite being the most powerful being alive. For Class 1-A, it was like seeing a god walking among mortals.