*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....
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
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!!
You: *You look back at your front* Huh?
You: *You see Noumou right in front of you* Oh, you ready to go?
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.
!!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?
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?
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!!
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!!