Chapter Text
They say a butterfly’s wings can stir the air and, given enough time, spark a hurricane. It sounds like an exaggeration, yet the principle holds—sometimes, the smallest change can alter everything.
In most universes, All Might crosses paths with Izuku Midoriya. After the Quirkless boy charges headlong into danger to save Bakugou from the slime villain, that act of reckless courage convinces All Might to make Izuku his successor and pass on the legendary power of One For All.
But not in this universe.
Here, All Might never drops the bottle containing the slime villain. That single, seemingly minor difference begins a chain of events that will shake the very foundation of the world.
---
Seventeen-year-old Izuku Midoriya walked aimlessly through the city, his hands buried deep in his pockets. He wasn’t heading anywhere in particular—his feet moved because standing still hurt too much.
All he could hear were the words that had broken him:
> “You can’t be a hero without a Quirk.”
They weren’t just anyone’s words—they belonged to All Might, the man Izuku had admired his entire life. Hearing them felt like the universe itself had decided his dream was impossible.
When he looked up, he was standing at the edge of Takoba Municipal Beach Park. He didn’t even remember walking there.
He turned to leave.
Then—
"Help…"
The voice was faint, almost lost beneath the rolling surf. Instinct overrode despair. Izuku sprinted toward the sound, heart pounding.
At the shoreline, he stopped short.
A turtle thrashed in the shallows, plastic cutting into its flippers as it tried to escape.
“Was… that you calling?” Izuku muttered, shaking his head. Even if it wasn’t, the creature was in trouble. He crouched down and carefully untangled the trash, freeing it.
The turtle looked up at him.
"Thank you. Wait here."
Izuku froze. “…What?”
The turtle turned and glided back into the ocean.
Hours passed. The sun dipped low, painting the waves in orange and gold. Izuku, shivering and confused, finally decided to go home—until he spotted something approaching across the water.
A man riding the turtle.
As they neared, Izuku could make out details: the rider was short and bald, with six dots tattooed on his forehead. He wore a Hawaiian shirt, shorts, and sandals. A white beard framed a face that radiated warmth—the kind that made you feel like you’d known him forever.
The man hopped onto the sand with surprising grace.
“You must be the young man who helped my turtle,” he said cheerfully. “I’m the Turtle Hermit—Krillin.”
Izuku just stared. “…I—uh—what?”
Krillin’s smile softened as he studied the boy’s expression: exhaustion, pain, and—buried deep—a stubborn spark of kindness that reminded him of someone from long ago.
“I’d like to thank you,” Krillin said. “But first, what’s your name?”
“…Midoriya Izuku. I just… did what any hero would do.” Realizing how that sounded, he flinched. “I-I mean… anyone would do.”
Krillin chuckled. “So, you want to be a hero? Well, you’re already ahead of most people. Not everyone would stop to help a turtle.”
Izuku’s face twisted. “You can’t be a hero without a Quirk. Even All Might said so.” His voice cracked. “I’m Quirkless.”
Krillin didn’t answer. Instead, he walked over to a half-buried pickup truck and, with one hand, lifted it high over his head.
“I’m over four hundred years old,” Krillin said casually. “I come from a time before Quirks even existed. Believe me, with the right training and hard work, you can be a hero.”
Izuku stared, mouth open, unable to speak.
Krillin set the truck down gently. “I’d like to train you. It won’t be easy. But if you’re serious, we have nine months before the U.A. entrance exam.”
“Yes!” Izuku blurted without hesitation—then blinked. “Wait… how did you know I want to apply to U.A.?”
Krillin’s smile turned mysterious. “You don’t live this long without learning a few tricks. Now go home, rest, and come back tomorrow after school. That’s when training begins.”
As Izuku walked away, something returned to his eyes—something the world had almost stolen: hope.
Krillin watched him go, his expression softening.
> “Master… Goku… after all this time, I’ve finally found my last student.”
A sudden cough wracked his body. He covered his mouth, pulled his hand away—blood streaked his palm.
> “Two years,” he whispered. “If I’m lucky.”
---
The next afternoon, Izuku ran to the beach, half-convinced yesterday had been a dream. But there was Krillin, standing atop a mountain of garbage as real as the setting sun.
“Good, you came,” Krillin said. He leapt down, moving with effortless agility. “We’ll follow a strict schedule. Monday through Wednesday, you clean this beach after school until dinner. Thursday and Friday, I teach you martial arts—also until dinner. Weekends are for rest. If I even suspect you’re skipping, training ends. Understand?”
“Yes, sensei,” Izuku said quickly.
“Good.” Krillin produced what looked like a turtle shell with straps. “Don’t worry, it’s not real. Put it on.”
With some struggle—and Krillin’s help—Izuku strapped it to his back. “This thing weighs a ton!”
“It’s only eleven kilos. You’ll wear it every time you’re here. Once you’ve adapted, I’ll give you a heavier one.”
“You’re going to make it heavier? Are you trying to kill me?”
Krillin smirked. “Be glad I’m not making you swim with sharks. Now get moving—this beach isn’t going to clean itself.”
---
A month later, Izuku had grown stronger. He dragged a broken washing machine toward Krillin’s truck when a sharp voice shouted:
“So you’re the jerk stealing from my babies!”
Startled, Izuku tripped and looked up to see a pink-haired girl glaring at him.
“I haven’t stolen anything!”
“Don’t lie! You’ve been taking materials from this beach for weeks. I need those for my babies!”
“…Babies?” Izuku repeated.
“Yes, babies!” she said, indignant. “I call all my inventions babies. Thanks to you, I can’t finish them!”
Izuku raised his hands. “Look, I think we started wrong. I’m Midoriya Izuku.”
“Right, I forgot to introduce myself. I’m Hatsume Mei—genius inventor and future head of Hatsume Industries. Well… once I graduate from U.A. and get some sponsors.”
“You’re applying to U.A. too?” Izuku asked, surprised. “I’m trying to get into the hero course. That’s why I’m training here.”
He hesitated. He couldn’t reveal the full truth. Krillin had warned him.
---
Flashback
About a week into training, Krillin had spoken quietly during a break.
“What I’m going to teach you later—if it falls into the wrong hands, it could be dangerous. I’ve seen the kind of destruction people can cause with this power. So we’ll tell everyone you have a Quirk. Tonight, I’ll meet your mother. We’ll say you’ve awakened one like mine—‘Ki Control.’”
The meeting had gone better than Izuku imagined. Inko agreed to the training, followed Krillin’s diet plan, and promised to register “Ki Control” once Krillin said Izuku was ready.
flashback End
---
“Until a month ago, I thought I was Quirkless,” Izuku told Mei. “But my master helped me awaken a Quirk like his. It only works if I’m in peak shape. That’s why I’m wearing this shell while I clean.”
Mei’s eyes lit up. She zipped close, her face inches from his—and her chest pressing against him.
“So Kame-kun wants to be a hero? We’re going to make so many babies together!”
Izuku nearly fainted.
Before he could react, Mei crouched behind him, poking the turtle shell. “This thing’s primitive! I can build something better. From now on, we’re partners. You save me the best salvage, and I’ll make you the best hero gear ever.”
She dashed off before he could answer.
Krillin, who had watched the entire scene, just smiled knowingly—as if he understood something neither of them did yet.
---
Months passed. Izuku and Mei grew close, forging a friendship that felt new to both of them. On weekends, Izuku even helped her in her workshop.
One afternoon, Mei proudly presented a sleek black case.
“Introducing Hatsume Industries’ latest prototype!” she declared. Inside were four blue wristbands and a matching shirt.
“They’re made from a tungsten-carbon weave reinforced with nano-layers—strong, heat-resistant, and heavy. Each band weighs six-point-two-five kilos. The shirt is twenty-five. That’s fifty kilos total. Krillin already approved. You’ll wear it every day until the U.A. exams—except when you’re sleeping, bathing, or on weekends.”
Izuku just nodded. By now, he trusted Mei’s inventions—and Krillin’s judgment.
---
The day before the U.A. entrance exam arrived.
Izuku tossed the last piece of trash into Krillin’s truck. The scrawny, 5’5” boy who’d once stood on this beach was gone. In his place stood a lean, muscular young man nearly 5’9” tall.
Krillin approached with a wooden box. “You’ve done well, kid. My master gave me this when I completed my training. Now, I’m giving it to you.”
Inside was a bright orange gi.
Izuku’s breath caught.
“No matter how the exam turns out,” Krillin said softly, “I’m proud of you.”
Izuku hugged him hard. “Thank you for everything, Master.”
Krillin returned the embrace quietly. “You’re welcome, Izuku."
End
Power Levels
Izuku pre training: 2
Izuku post training: 70
Krillin: 3000
All Might Prime: 1400
Yagi prime: 140
All Might injured: 300
Yagi Injured: 30
Inko: 15
Mei:30