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MHA: I Was Reincarnated as Deku’s Twin but My Quirk is a Literal Joke!

Jolpi_man
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The average realized release rate over the past 30 days is 7 chs / week.
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Synopsis
[A/N: I am still bad at writing synopsis don't think too much] Sunny was just an average guy who knew his anime tropes—until he got flattened by a smiling semi-truck and met a carrot-munching God who goes by the name Bugs. Offered a chance at a new life in the world of My Hero Academia, Sunny makes a deal for the ultimate survival tool: Gag-Based Toon Force. But there’s a catch. To balance the cosmic scales, Sunny is burdened with a "No Damage" rule—he’s completely invulnerable, but his attacks are strictly for laughs. Anvils turn enemies into pancakes, and hammers just cause squeaky-toy sounds. To make matters worse, he’s been saddled with a neighbor from hell: Aqua, the high-maintenance, "useless" Goddess of Water, who hasn't even met her first shut-in gamer yet. ​Reborn as the twin brother of the world’s most serious hero-to-be, Izuku Midoriya, Sunny must navigate a world of serious stakes with a body made of rubber and a voice that sounds like a slide whistle. Between keeping Izuku from overthinking his destiny and keeping Aqua from spending the family's grocery money on high-end sake, Sunny is about to show the world that sometimes, the best way to be a hero is to be a total joke.
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Chapter 1 - Chapter 1: The Carrot, The Truck, and The Divine Tax Return

Chapter 1: The Carrot, The Truck, and The Divine Tax Return

[A/N: Hey everyone! Before we dive in, I figured I should explain how this fanfic actually came to be.

​Today was just... one of those days. I was headed home from college when I realized my parents were out and I had completely forgotten my keys. Since I was locked out, I headed over to my girlfriend's house instead.

​Now, full disclosure: she's a huge anime fan (mostly because of me, of course). She's currently obsessed with My Hero Academia, and while we were hanging out, she jokingly suggested I should write a fic for it. We started spiraling into a deep conversation about gag-based characters, Toon Force, and some other random tropes.

​Long story short: by the end of the night, she somehow convinced me to actually write this. (If anyone has a tutorial on how to say "no" to your girlfriend, please send it my way!)

​To all readers, old and new: Don't take this one too seriously. This is all about having fun with the MHA world. Enjoy the ride!]

(Sunny POV)

My name is Sunny. And currently, I am being stalked by a refrigerator.

Yes, you heard me. A 1950s-style, pearl-white Sears Coldspot is currently tiptoeing behind me on little mechanical legs. Every time I spin around to catch it, it freezes—one leg mid-air—and whistles a suspiciously innocent tune.

"Okay, Sunny," I muttered to myself, rubbing my temples. "You stayed up too late watching Looney Tunes clips and reading MHA fanfiction. Your brain is finally fried. It's over. The gray matter has turned into mashed potatoes."

I was walking home from my final exam in Advanced Physics. My brain already felt like it had been put through a blender on the 'pulse' setting, but the world around me was starting to lose its grip on reality. The sidewalk felt a little too... bouncy. The birds weren't chirping; they were whistling the theme to The Merry-Go-Round Broke Down.

I accelerated my pace. I just wanted to get home, crawl into my bed, and pray that the refrigerator didn't follow me through the front door.

HONK! HONK!

I jumped three feet into the air. Literally. I didn't just hop; I hung in the air for a second, my legs pedaling frantically like a bicycle before gravity remembered I existed and slammed me back down.

I turned around, expecting a car. What I got was a Truck.

But not just any truck. It was a massive, bright-red semi-truck with a face. And I don't mean a "Disney Cars" cute face. I mean it had a massive, chrome-toothed grin and headlights that looked like manic, bloodshot eyes. It was revving its engine, and the exhaust smoke coming out of the pipes was forming the shape of middle fingers.

"Oh, come on!" I yelled, pointing a finger at the mechanical beast. "I know the tropes! You're Truck-kun! I haven't even finished my hero-worship phase yet! I'm too young to be a protagonist!"

The truck didn't care about my character arc. It roared, the tires screaming as it peeled out toward me. I did the only sensible thing: I ran.

I turned a corner into an alleyway, hoping to lose it. I saw a tunnel up ahead. "Yes!" I dove for it, but halfway through, I realized the horrifying truth. It wasn't a tunnel. It was a masterpiece of 2D art painted onto a solid brick wall.

SPLAT.

I hit the wall and flattened like a pancake. I felt myself sliding down the bricks, fluttering like a piece of paper, before I popped back into my 3D shape with a sound like a plunger being pulled off a floor.

I turned around just in time to see the truck. It didn't stop. It didn't slow down. It just... opened its grill like a giant mouth.

"GUESS WHAT TIME IT IS, DOC?" a voice boomed—a voice that sounded suspiciously like a Brooklyn accent filtered through a megaphone.

The truck swallowed me whole. Everything went black, accompanied by the sound of a slide whistle descending into a bottomless pit.

(Sunny POV)

When I opened my eyes, I wasn't in a hospital. I wasn't in a golden palace.

I was sitting in a director's chair in the middle of a white void. There was a dressing room mirror to my left and a basket of carrots to my right.

And sitting across from me, leaning back in a matching chair with his legs crossed, was a rabbit. A tall, gray-and-white rabbit munching on a carrot with the most casual expression I had ever seen on a living—or dead—being.

"Eh... what's up, doc?"

I stared. I blinked. I pinched my arm. It made a squeak sound.

"Bugs Bunny?" I whispered. "You're... you're God?"

Bugs took a loud, crunching bite of his carrot, chewed slowly, and swallowed. "I prefer the term 'Creative Consultant,' kid. But yeah, for today's episode, I'm the big cheese. The head honcho. The guy who writes the checks."

"I'm dead, aren't I?" I asked, looking down at my hands. They looked... rounder. Dimpler.

"As a doornail, Mac," Bugs said, flipping a coin that looked like a gold-plated bottle cap. "But don't get your tail in a twist. I'm feelin' generous. See, I've been watchin' that 'My Hero' show, and frankly? It's a bit too serious for my tastes. Way too much cryin', not enough pies to the face. So, I'm gonna send you down there to liven things up."

My heart did a little tap-dance in my chest. "MHA? Really? Like, with the Quirks and the heroes?"

"The whole shebang," Bugs nodded. "And since I'm the one pullin' the strings, I'll give ya one wish. One power to carry into the fray. What'll it be? Super strength? Heat vision? A permanent supply of Grade-A lettuce?"

I didn't even have to think about it. If I was going into a world where people could level cities with a punch, I needed the ultimate survival tool.

"I want Gag-Based Toon Force," I said, my voice gaining confidence. "I want to be a walking cartoon. I want to be unkillable, invulnerable, and able to pull a mallet out of thin air. I want the world to follow my rules."

Bugs stopped chewing. He looked at me with one eyebrow raised. He reached behind his back and pulled out a massive, ancient-looking machine. It was a "Wet Measuring Machine"—the kind you'd see at an old carnival, complete with a rusted scale and a bell at the top.

"Toon Force, eh?" Bugs muttered, tossing my 'soul' (which looked like a glowing marble) onto the scale.

The needle spun wildly. The machine started smoking. Cogs and springs began flying out of the back. The bell didn't just ring; it screamed in agony.

"Yikes," Bugs said, wincing. "That's a heavy ask, kid. Toon Force is top-shelf stuff. It's expensive. Your soul's got the weight of a wet napkin. You can't afford the full package. You're gonna need a negative to balance the books."

I frowned. "A negative? Like a weakness?"

"Exactly. Something to keep the cosmic scales from tippin' over and erasurin' reality," Bugs explained.

I thought about it. If I had Toon Force, I was basically a god. What could possibly balance that? Then, it hit me. The "Pacifist" route.

"How about this?" I suggested. "I cannot damage or kill anyone while I'm using Toon Force. If I drop an anvil on someone, it just turns them into a pancake for a second. If I hit them with a hammer, they just get a giant bump on their head that disappears in a minute. No real blood, no real death. I can only do damage if I turn the power off and become a normal human."

Bugs tossed a small weight onto the scale labeled 'VOW OF NON-VIOLENCE.' The needle slowed down, but it was still in the red.

"Still too pricey, doc," Bugs said, shaking his head. "You're askin' for immortality. I need more 'oomph' on the negative side."

I paced around the white void. What else? What could be worse than not being able to fight back?

"What if... what if I take a 'Negative Character' with me?" I asked. "Like, a companion who is so problematic and useless that they make my life a living nightmare?"

Bugs' ears perked up. "Now we're cookin' with gas! A partner in crime to weigh ya down. Who you got in mind?"

I remembered a certain blue-haired goddess who was famous for being a black hole of productivity and money.

"Aqua," I said firmly. "The Goddess from Konosuba. Give me her as my 'support' character. I have to babysit her, pay her debts, and keep her out of trouble while I'm trying to be a hero."

Bugs' eyes widened. He pulled a small figurine of Aqua out of his pocket and tossed it onto the scale.

CRACK.

The scale didn't just balance. The entire machine shattered into a million pieces. The bell flew off and hit a gong in the distance. A neon sign flashed overhead: TOTAL SYSTEM FAILURE - DEAL IS TOO GOOD.

Bugs Bunny burst out laughing, slapping his knee. "Aqua?! Kid, you're a genius! That's not just a negative; that's a cosmic curse! You've broken the bank! Handling that dame is worth ten Toon Forces!"

He stood up and dusted off his fur. He walked over and handed me a giant, oversized white glove.

"You got a deal, Sunny. You're goin' in. You'll be a 24/7 cartoon—squishy, stretchy, and completely harmless to the touch. And you'll have your 'Goddess' right by your side to make sure you never have a moment of peace."

"Wait, 24/7?!" I yelled, my eyes bulging out of my head like two tennis balls on springs. "I can't turn it off?!"

"Ehh..." Bugs leaned on the lever, chewing a carrot thoughtfully. "Tell ya what, doc. Since you're takin' the Blue Wonder over there as a neighbor, I'll give ya a break. You can pop out of the gag for a limited time—call it a 'Commercial Break.' But don't stay 'real' too long, or the world starts gettin' heavy again. No takesies-backsies!"

Bugs pulled the giant wooden lever labeled 'REINCARNATION YANK.'

"Good luck in UA! Try not to let the blonde kid with the explosions pop ya!"

"WAIT—!"

The floor didn't just vanish; it folded up like a card table. I plummeted through a kaleidoscope of colors, sounds, and what I'm pretty sure were discarded scripts from the 90s. Next to me, a girl with hair the color of a mountain spring was falling gracefully—well, as gracefully as someone can fall while screaming at the top of their lungs.

"WHAAAA! MY DIVINE FOLLOWERS! MY SAKE! I WAS SUPPOSED TO BE REINCARNATING A HERO, NOT BEING REINCARNATED MYSELF!" Aqua wailed, her expensive raiment fluttering in the cosmic wind. She hadn't even met a shut-in gamer yet; she was fresh out of the Divine Office and absolutely hating the "field work."

"STOP SCREAMING! WE'RE GOING TO BE LATE FOR OUR OWN BIRTH!" I yelled back, my body stretching out like a noodle as the light of a new world blinded me.

FWUMP.

I didn't hit an alleyway. I didn't bounce on pavement. Everything went warm, dark, and very, very cramped.

(Sunny POV: 0 Years Old)

I blinked. Or I tried to. My eyelids felt like they were made of heavy dough. I tried to stretch my arms, but I hit something soft. Next to me, I felt a tiny, rhythmic heartbeat. It was steady, nervous, and felt... familiar.

Wait. Twin? I'm a twin?

Suddenly, a bright light appeared at the end of the tunnel. I felt myself being hauled out into the cold air by a pair of giant, rubbery hands (okay, they were probably normal doctor hands, but I was small).

"It's a healthy boy!" a muffled voice cheered.

I took my first breath, intending to cry like a normal baby. Instead, a loud TOOT-TOOT sound echoed through the delivery room. My lungs didn't just inflate; they expanded like a giant balloon until I was floating a few inches off the doctor's palm.

"And here is his brother!" the doctor announced, pulling out a second, much more normal-looking baby with messy green hair and freckles.

I looked over at my new roommate. Izuku Midoriya. The future "Greatest Hero" and world-class cinnamon roll. And I was his brother? The "Gag" twin?

As the nurse carried us to the window, I looked out at the house next door to the hospital. Through the glass, I saw a woman with blue hair being held by her frantic parents, already wailing loud enough to shatter the nursery windows. Aqua. My neighbor. My divine headache.

I looked at Izuku, who was staring at me with wide, innocent eyes. I reached out a four-fingered, gloved hand and poked his nose.

HONK.

"Welcome to the family, Izu-chan," I thought, as tiny yellow birds started circling my crib. "Things are about to get weird."