Saiyan among us

Battle training,the mettle of a saiyan is revealed!!!

After 3-5 years of training or one day outside of the hyperbolic time chamber kaminari and mineta's training efforts were a total worth of time for Y/n as they managed to become complete masters of ki and they became stronger than before their body formation has changed while it may not be noticed it's there.

mineta was able to gain a transformation (similar to all might when turns buff or the same as roshi in full power state but the difference is it's sort of his true form and his hero costume is changed it's hit uniform as a heirloom from Y/n to further the training.)

kaminari's training was very fruitful he no longer goes into dumb phase when he over goes his limit he is able to go to a higher voltage limit and he has a power up(similar to killua's god speed)however he also learned how to fight with the electricity flowing within his body during the time they were in their quirks evolved kaminari can shoot lightning should he wish to.

mineta's pop off when combined with different elements it will become a weapon with said attribute they also got a bit muscular not all might buff but still and they are martial arts masters level they can fight vs Y/n for a week without breaking a sweat but when Y/n gets serious they have no chance.

any way back with the story:Y/n,kaminari and mineta came back from their training all of them were satisfied with the results and when they realized the they hurried to school
Y/n:Cmon you two we have to hurry up otherwise aizawa is going to use his scarf on us move it come on.
Kaminari:we know let's go mineta come on.
Mineta:yeah yeah I'm coming.

Fifteen minutes later~
Y/n:we made it finally.
They sat in their seats
Izuku:hey brother are you ok?
Y/n:yeah just worried that's all.
Izuku:why are you worried?
Y/n:I forgot to tell inko where I am yesterday.
Izuku:WHATTTT!!!

Everyone turns to see the reason izuku shouted
Y/n:baby brother please you didn't have to shout yes I forgot to tell inko about where i am.
Izuku:you remember the last time she got angry right?
Y/n:D-d-don't remind me I'm still terrified from that.and I told you about my childhood so that means something.
Izuku:y-y-yeah I remember that.
Y/n:izuku I'm sorry for——

All might:I AM ENTERING THE CLASSROOM LIKE A NORMAL PERSON!
Kaminari:it's allmight.
Kirishima:he really is a teacher here.
Tsuyu:it's his silver age costume.
Allmight: today we all are going to participate in battle training!!!

Bakugo&Y/n:Battle training!!!
Y/n:YES FINALLY LETS FIGHTTTT!!!
The class got shocked at his outburst like that usually Y/n is quiet and calm.
Y/n:(realizes what he did right now)oh I'm sorry it's just my quirk acting up like that s-s-sorry.
The class(except bakugo,todoroki and allmight):"that's so adorable"they thought.
Allmight:but what is a hero without a costume now all of you suit up.
It was at this moment Y/n knew he is fucked.
Y/n: all might can I wear my costume after they all go it's uhh...a bit personal.
Allmight:yes you can young Y/n.

All of the class(except izuku):"why is he asking is he hiding something?"they all thought
After they got dressed the girls were too curious to know what Y/n is hiding so they asked jiro to use her quirk when he was putting up his costume and momo made a speaker so they could all hear
Y/n.

Y/n:finally I'm all alone what am I going to do how can I tell them about this can they even accept me despite how I look only the principle of u.a,allmight and izuku and inko know about this(he has more scars I couldn't find photos for all of them.)

(Just ignore the fucking hole in the guts it's grimmjow from bleach tite kubo)
All I can hope is that they will every time I hear his voice is just *punches the wall leaving a dent in it holding back obviously*NO I will never be like him I will be a hero and defeat them for everything they have done to me oh I guess I took my time.gotta hurry up I really hope no one heard me and also I really should go I don't want to miss it *finishes wearing the costume and leaves the locker room*

The girls:what is he hiding? Why doesn't he tell all of us?
So many questions are going through their heads but there is one that is mostly important: what has happened to him why did he sounded so broken?
Momo:maybe we should ask him about it?
Jiro:we should but didn't you hear what he did to the wall?
Tsuyu:but we can't just leave it like that he sounded so broken and afraid he is usually confident and calm I don't want to see any one sad but he isn't telling us anything*she starts to get saddened but doesn't cry*.
Mina:let's leave it for now we can ask later we have to get to class.
Later they all arrived in battle ground A

*all teams are the same in the anime except for Y/n he is alone*
Y/n:hey all might not to sound rude but why am I alone?
Allmight:because you will participate in the battles as an neutral a vigilante if you will you can either defeat all of the opposition or capture the weapon to win you should go now.and also hold back.

Y/n:I will allmight I won't hurt them...a lot promise.
Allmight:attention heroes and villains a vigilante has entered the battlefield either arrest him or defeat him and continue the match.
Bakugo:huh a vigilante?THE FUCK IS THIS SHIT!!!DONT SCREW WITH ME I WILL BLAST THE VIGILANTE TO HELL!!!ALONG WITH YOU DEKU.
Izuku:kacchan it's not the time for us to fight right we need to take him down right now.

Y/n:OH you two think you can take me on? Who decided that? You think you can look down on me?who decided THAT?let me tell you heroes and villains the one who decides is me and if you think you are better than me i will prove it to you how much superior I am to you in every way possible!!!
*powers up to fury form*

Allmight:*he acts like a villain more than a vigilante but than again he does a good job in intimidation*.
Bakugo:WHAT DID YOU JUST SAY THAT IM WEAK THAT IM NOT WORTH YOUR TIME HUH DONT LOOK DOWN ON ME MONKEY.
Y/n:what did you just call me chihuahua bomb.
Bakugo:MONKEY.
Y/n:that's what I thought I was gonna go instantly to capture the bomb but on second thought it seems like first i need to cave your face in Bakugo.

Izuku:hold on you have to fight me as well.
Y/n:oh don't worry I'll fight all of you but first.
Y/n zooms behind izuku and punches Bakugo in the gut with such force he vomits blood and saliva and proceeds to kicking him to a wall successfully leaving him stuck there.
Izuku:kacchan no!!!
Y/n: bring it on izuku *takes a stance similar to the first Goku vs vegeta vegeta's stance*
Izuku:here I come*powers up to 20% full cowl and takes a stance Goku martial arts stance*

(Ignore the shadow clones and just focus on the hand to hand combat izuku is red Y/n is yellow)
Izuku and y/n were about to finish it with a final attack but izuku directed the smash upwards and he secured his team the victory needless to say y/n was proud of izuku.

(the rest of the battles happened like in the anime but with Y/n being the neutral) and with that it's the end of the battle training afterwards they went home izuku spoke to Bakugo and they officially became rivals and bakugo also happened to consider Y/n as his rival Y/n acknowledged them both
and hope they will continue to break through their limits like he will he hopes that tomorrow will be an exciting one little did he know that it's about to take a turn for the worst.

Meanwhile in another place:
Shigaraki:would you see that allmight really did become a teacher what a joke.
Kurogiri:our plan is close to come shigaraki you sound awfully excited.
Shigaraki:how can I not it's not like everyday you get to kill two birds with one stone how do you think it will feel to kill the symbol of peace in front of the disgusting society that worships him?
Kurogiri:and what is the second reason you are so excited about?
Shigaraki:what I'm not allowed to be happy for a reunion? It's been so long since I have seen you...

MY BABY BROTHER!!!!

And that's it a lot of mind was put in this also I'm planning to move them in to the dorms a bit earlier than the canon counterpart also I think of adding mirko and ryukyu to the harem should I comment and recommend it to others until the next time bye see ya later fellas good bye.