Mumen Rider in MHA

Late Evening – Kamino Ward

The city didn't roar.

It held its breath.

The clouds over Kamino churned like a kettle at the boil, purple and black, lightning silent behind their folds. A low rumble passed through the foundation of the district—not an earthquake, not quite. But something beneath. Waiting.

Satoru Kojima felt it first in his pedals. A brief tremor, almost like static crawling through his boots.

He slowed his bike.

Then the sirens began.

Long. Distant. Then closer. Then all at once—bouncing from every block like a haunting wail. One after another. Hospital. Firehouse. Police station. Emergency broadcast towers. Every system online.

"All units. Possible mass villain convergence in Kamino Ward.

All civilians advised to shelter indoors or evacuate.

Repeat—this is not a drill."

The voice was calm. But something inside Satoru twisted.

He parked his bike and jogged up a stairwell to the nearest rooftop, helmet tucked under one arm, wind slicing at the loose flaps of his jacket. From up high, Kamino unfolded in quiet agony—intermittent blackouts flickering across blocks, red flares bursting near distant intersections, and below it all, the scuttle of hundreds of people scrambling to leave.

But it was already too late.

A thunderclap split the sky—not sound, not weather. Something else. And from the far end of the skyline…

Smoke.

Dense. Fast. Like a tower rising in reverse.

---

Kana was walking with her mother when it started.

They'd gone out for taiyaki after an awkward, mostly silent evening. Her mother had smiled, awkwardly, trying too hard not to say anything critical. Kana had just wanted to leave.

But then the air shifted. The lights buzzed.

Kana's quirk flared without her meaning to—static bursting at her fingertips like a warning.

Her mother looked up. "Kana—run."

Something exploded two blocks away. Glass shattered above them. A villain's warped silhouette towered in the flicker of firelight.

---

Satoru was already moving.

He dropped from the roof and hit the ground running. The police frequency screamed in his ear through a borrowed comm-link.

"Evacuate. Evacuate." "All Might's been sighted near the warehouse district—" "—someone else is there too. Unknown villain. Repeat, unknown—"

His heart kicked against his ribs. But he didn't stop.

Every corner he turned had someone trapped. A fallen scaffold here. A burning car there. He didn't hesitate.

One boy with a broken leg? Lift him on the bike. Elderly couple lost in smoke? Walk them three blocks to safety. Screaming child in the rubble? Dig with your hands.

His goggles fogged with sweat. His throat burned. But he kept moving.

He always did.

---

Kana and her mother ducked into a collapsed subway entrance, panting, ash streaking their coats. Another tremor passed through the floor. The lights flickered. Kana could hear it—something massive, something crawling with intent, above them.

Then—

"Kana!!"

She turned.

There he was.

Battered armor. Dent in the helmet. Half his face scraped. But still standing.

Still moving.

Satoru reached out to help her mother up from the rubble.

"Kojima—?"

He gave a tight smile. "You alright?"

She stared at him. "What are you doing here?"

"I'm always here."

Another explosion rocked the upper levels.

He turned back. "Get to the shelter three streets down. Don't stop."

Kana's mother hesitated.

Kana said nothing.

But they moved.

---

Satoru stayed behind.

He adjusted his helmet.

Smoke curled from the east. A cold wind pushed through the cracks in the buildings like breath before a scream.

And somewhere, ahead of him…

All Might was about to fight for the last time.