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~The Warm Up, Prologue~





Japan

A couple of miles away from USJ

Noon






!!PANT!!


!!PANT!!




Tenya(In thoughts): *Keeps running at great speeds* MUST!! KEEP!! GOING!!

Tenya(In thoughts): THE OTHERS ARE RELYING ON ME TO BRING BACK REINFORCEMENTS TO COMBAT THE VILLAINS!!

Tenya(In thoughts): IF NOT, I WILL SHAME MY REPUTATION AS A HERO-IN-TRAINING AND A MEMBER OF THE-



!!CRASH!!




Tenya: *Crashes into someone* GYAH!! *Falls onto the ground, butt first*

Tenya: *Sneers in pain* O-Ow!!

????: Oops, sorry. Didn't see you there.






When Tenya looked up to see who asked him the question, he saw a man before him. But not just any ordinary man, however. This guy was bald, wears a jumpsuit with a cape on his back, a pair of boots and gloves, a belt with no pouches strapped around his waist, and this fella also has the most blank facial expression the young hero has ever seen.

By the look of this stranger's attire, Tenya went to the assumption that this man was a hero. To him, at least. But there was more to this man than meets the eye. And this guy, was you.






You: *You offer to help Tenya up* Let me help ya up, pal.

Tenya: Uh, t-thanks. *Grabs your hand and you pull him up*

You: Where are ya off to?

Tenya: To U.A. Academy. My friends and I have encountered a massive number of villains and I've been chosen to go back to the school to alert the other teachers.

You: I see. So you're a student at U.A., huh?

Tenya: *Nods to your question* Indeed I am. *Examines you more*

You: *You look at him in confusion* Uuh, is there something wrong?

Tenya: *Looks at you* Hmm? Oh, nothing. It's just that....



*Awkward silence occurs*



You: It's the outfit, isn't it?

Tenya: Yeah, it's the outfit. Sorry if my criticism offended you just now.

You: It's alright, we cool. Anyways, where are your friends right now?

Tenya: *Looks behind him and points straight ahead* A couple of miles away from our current position. *Looks at you* Why?

You: Just thought I'd want to help, that's all.

Tenya: *His eyes widen upon hearing this* Really? You want to help?

You: *You shrug* Sure. Besides, I've been wanting to do something fun for a while now.

Tenya(In thoughts): Hmm, I don't know. This man does look like a hero, but I see no signs of his Quirk or anything else that's hero related about him.

Tenya(In thoughts): But, as my mom once said, "Never judge a book by it's cover."

You: Hey. *No response recieved* Hey!! Buddy!!



!!SNAP!! SNAP!!




Tenya: *Snaps back to reality upon hearing you snapping your fingers* Y-Yes?

You: Don't you have somewhere to be at right now?

Tenya(In thoughts): *Look of horror appears on his face* AAAAAAAAAAAAAAH!! I FORGOT!! I NEED TO MOVE!! NOW!!

Tenya: *Shakes your hand* Goodbye!! *Sprints back into action*

You: *You look at him* HEY!! DOES THIS MEAN I CAN HELP OR NOT?

Tenya(In the distance): YEAH!! SURE!! WE'LL NEED ALL THE HELP WE CAN GET!!

Tenya(In the distance): DON'T BLAME ME IF YOU END UP GETTING KILLED DURING BATTLE THOUGH!!

You: *Look of confusion appears on your face* HUH? WHAT DID YA SAY?



*Silence occurs*



You: Oh. He's gone.

You: *You look to where Tenya pointed to earlier* Well, time to work for a living.

________________________________________________________________________________________________________

________________________________________________________________________________________________________

USJ(Unforeseen Simulation Joint)

Wow, that was fast....






You: *You look at the USJ* Getting here was a piece of cake.

You: Hmm~ Cake. *You turn around* I should get some right no-



!!BOOM!!




You: *You look at the front entrance in confusion* Huh?

Tomura(Inside): THAT'S IT NOUMU!! KILL HIM!! KILL ALL MIGHT!!

You: "Noumu"? Who or what is Noumu?

You: *You shrug* Ehh, only one way to find out.






With that said and done, you proceed to enter the USJ and help out All Might and all the other heroes inside with their villain infestation.

While, also hoping to make this quick since you're hungry for some cake as well.



(!!QUE THE EPICNESS!!)

([link])



J  U  S  T  I  C  E       E  N  F  O  R  C  E  M  E  N  T

________________________________________________________________________________________________________

(Inside the Unforeseen Simulation Joint....)








*You stop and look around the joint in awe*



You: Wow, this place look awesome. Almost looks like a theme park, to be honest.

Mina: *She and the others notice you* Uuh, excuse me.

You: *You look at her and the others with a blank stare* Huh?

Mina: W-Who are you?

You: Huh? Can't you tell by my outfit? I'm a hero, just like you and your friends.

You: Well, technically I'm a Pro while the rest of ya are-

Ochako: Wait!! Wait!! Wait!! *You stop talking and look at her* You're a Pro!?

You: *You nod to her question* Yes, yes I am.



Ochako and the others: *They look at you in shock and disbelief* BUT YOU'RE SO YOUNG!!




You: *Sweat drop appears on your head* This misidentification crap is really bothering me right now.

Izuku(In the distance): ALL MIGHT!!

Ochako: *She and the others look behind them* Oh no!! *They run towards the commotion*

You: What was that?






Instead of running towards the hullabaloo, you simply walk to where Ochako and the others are currently at and take your time. Once you were there, you find four boys in the sidelines and three villains standing and looking at a large muscular male with strange blonde hair.

Knowing that the adult male with blonde hair is in trouble, there was only one thing to do....





!!ZOOM!!




Ochako: *She and the others notice you running towards the trouble* H-HEY!! WHAT ARE YOU DOING!?

Mina: Is that guy crazy!? He's gonna get himself hurt!!

Tsuyu: Unless the bad guys catch him, of course. I mean, did you guys just see how fast he just went?

Mezou: I agree. He must have a Quirk that grants him super speed.






Technically, they're wrong about your power being super speed. But they'll soon find out in a moment. Then, just before a large black skin monster with a beak, pants, and a brain showing on it's head, was about to smash All Might into the ground, you step in and block the attack with great ease.

Causing a shock wave to occur and create a large cloud of dust to appear afterwards. Once the dust settled, you look at the villains and stare at them with the same blank stare you always have.






Kurogiri: *Looks at you with interest* You're a strong one to have withstand Noumu's punch. Who are you?

You: Just a guy who's a hero for fun.



*Awkward silence occurs*



You: Uh, that's it.

Kurogiri: *Laughs upon hearing this* REALLY!? THAT'S IT!? *Laughs even more*

Kurogiri: THAT'S THE MOST RIDICULOUS INTRODUCTION I'VE EVER HEARD!!

You: Yeah yeah, keep your opinions to yourself. *You look at Noumu* Anyways, what's your name?

Tomura: The being in front of you is called "Noumu". The ultimate weapon against All Might and the League of Villains' greatest creations!!

Tomura: If you're here to challenge him, be my guest. But be warned, he won't show you any mercy.

You: *You shrug* Okay. Cool.

Kurogiri: *Whispers to Tomura* Strange, he doesn't seem to be afraid about fighting Noumu.

Tomura: He's afraid in the inside. Now!!

Tomura: NOUMU!! KILL THE BALDY!!






Upon receiving Tomura's orders, Noumu starts to walk up to you as All Might and the others watch in anticipation and fear. To them, it's game over for you.

However, it's Noumou who they should be worried about after what you're gonna do to him.






Ochako(At front entrance): WHAT ARE YOU DOING!? GET OUT OF THERE!!

You: *You look at Ochako* Hmm?

Ochako(At front entrance): GET OUT WHILE YOU STILL CAN!!

You: What did she say? I didn't hear her clearly.

Tomura(In thoughts): HAHAHAHAHAHAHA!! YOU'RE TOAST, BALDY!!



!!STOMP!!




You: *You look back at your front* Huh?

You: *You see Noumou right in front of you* Oh, you ready to go?

Noumou: ROOOOOOOOOOOOOOOOOOOOOOOOOOOOAAAAAAAAAAAAAAAAAAAAAAAAAAAAARRRRRR!!

You: I'll take that as a yes. Also, you'll need some serious breath mints after this, dude.






With that said and done, Noumou readies his right arm and then sends a punch right at you. From here, Kurogiri, along with everyone else at the USJ right now, thought you were a goner once Noumou hits you.

But....





!!P   U   N   C   H!!







It was actually Noumou who's the goner. In an instant, you defeated Noumou with just one punch and this punch then causes the entire facility to shake vigorously.

This lasted for about five minutes and after that, chunks of what used to be Noumou come rainin' down onto the floor. As for everyone's reaction to this? It was the same thing: astonishment and disbelief.






Kurogiri: Uuh, Tomura?

Tomura: *Looks at you in shock and disbelief* R-R-R-R-R....

Kurogiri: What is it?

Tomura: RETREEEEEEEEEEEEAAAAAAAAAAAAAAAAAAT!!






With that said and done, Kurogiri immediately opens an exit portal and he and Tomura jump in it to escape the same fate as Noumou if they stayed longer.






Rikidou: *Looks at his classmates* D-Did you guys saw what I just saw?

Minoru: Y-Yeah....

Mina: T-That guy took out that brain guy with just one punch. ONE. PUNCH.

Tsuyu: Well, at least we know why he's a Pro Hero.

Ochako: *Looks at you* Who is he?



(Back to you.....)




All Might: *Regains his equilibrium and looks at you* Thanks for the save, pal. I owe ya o-



*You suddenly fall to the floor on your knees*



All Might: H-Hey!! You alright!?

You: *You look at the floor in shock* N-No....

All Might: *looks at you in confusion* Huh?

You: N-Not again.... All it took was one punch....

You: ONE. PUNCH.....














You: DANG IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIT!!






________________________________________________________________________________________________________
(AUTHOR'S NOTE)


Hey guys!! YellowNinja123 here!!

Hope you all enjoyed the prologue to my second Boku no Hero Academia/One Punch Man Crossover Insert. Had a lot of fun writing this and I had to choose between doing this or my Nonon Jakuzere x Male Reader.

I was going to do Nonon's Insert, but this story was BEGGING to be made. Literally, I couldn't think of something else to write other than this, so I decided to go with this one.

Also, if any of you guys have questions regarding this insert, let me know in the comments below.

Again, hope you guys enjoyed this, thanks for the support, and stay awesome!!

CIAO!!
!!:DHope you guys enjoy:D!!
------------------------------------------------------------------------------------------------------------------------------------------------------------
One Punch Man by ONE

Boku no Hero Academia by Kohei Horikoshi




Ch. 1: yellowninja123.deviantart.com/…




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Add a Comment:
 
:iconkeybladericeheart:
KeybladerIceHeart Featured By Owner Dec 17, 2017
ONE PUNCH!!!!!!!!
Reply
:iconkerbgonherb:
KerbGonHerb Featured By Owner Aug 6, 2017  Student
I didn't look at the title, so you can believe I was surprised when I realized it was saitama
Reply
:iconbestpony666:
bestpony666 Featured By Owner Mar 22, 2017  Hobbyist Writer
ALL IT TOOK WAS ONE FUCKING PUNCH!!!!!!!!!!!
Reply
:icongreensparkyboy:
greensparkyboy Featured By Owner Mar 18, 2017
Hahaha. Funny
Reply
:icongreensparkyboy:
greensparkyboy Featured By Owner Mar 18, 2017
Hahahahahahahahahahahahahahahahahahahahahahahahahaha
Reply
:icongreensparkyboy:
greensparkyboy Featured By Owner Mar 18, 2017
HahahHHHahahahahahahahahahahahahahahahahahah
Reply
:iconjohnnytheepicchhun:
JohnnyTheEpicChhun Featured By Owner Mar 17, 2017
Now that is a crossover I want! Can't wait how the the REAL OPM train him
Reply
:iconyeeakbar111:
yeeakbar111 Featured By Owner Mar 17, 2017  Hobbyist Writer
Reply
:icontriforceandroid2016:
TriforceAndroid2016 Featured By Owner Mar 17, 2017
Nice!
Reply
:iconalexander-lancelot:
Alexander-Lancelot Featured By Owner Mar 17, 2017  Hobbyist Artisan Crafter
Reader: WHY DOES EVERYTHING I PUNCH DIE IN ONE HIT!!!!!!
Reply
:iconignoblefiend:
IgnobleFiend Featured By Owner Mar 17, 2017
:giggle: :clap:
Reply
:iconviper32153:
viper32153 Featured By Owner Mar 17, 2017
If all you're going to change is call him (you) ot (y/n) why not just call this Uraraka x Saitama?
Reply
:iconyellowninja123:
YellowNinja123 Featured By Owner Mar 17, 2017  Student Writer
Because Saitama's an adult while Ochako is a kid. Making them a couple is a big no no.
Reply
:iconviper32153:
viper32153 Featured By Owner Mar 17, 2017
So aside from name and age it's just Saitama?
Reply
:iconyellowninja123:
YellowNinja123 Featured By Owner Mar 17, 2017  Student Writer
No, in this story, your like Saitama. But you're not actually him.
Reply
:iconviper32153:
viper32153 Featured By Owner Mar 17, 2017
You just act, dress, fight, and look like him.
Reply
:iconyellowninja123:
YellowNinja123 Featured By Owner Mar 18, 2017  Student Writer
Exactly
Reply
:iconaaronladoy1:
aaronladoy1 Featured By Owner Mar 17, 2017  Hobbyist Writer
good work 
Reply
Add a Comment:
 
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