My Hero Academia: Throne of Heroes

Transformation !

2 Years Later

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(Reincarnating to another World they said, it would be awesome they said, its super fun, you get Overpowered abilities, and you get to fuck some girls, AMAZING !, Fucking Lies !) said Izuku, while being forced to play with another baby, this baby was the son of his mom's friend, which meant he gets to meet them everyday (Look at this fucking dumb brain, his chasing a fucking fly... and he fell, now his crying, Fuck babies man, why do I have to go through Childhood, Fuck) seeing her son fall down the Kid's mom came rushing "Oh, my sweet baby, come to mommy" the woman than brought out her breast and started to breast feed the baby (fuck yeah, look at those gorgeous melons ! Yeah you feed that idiot, ahahahah, best part of being a baby!) Inko, Izuku's mom noticed how Izuku was watching her friend breast feed, so she tried to breast feed him as well

Of course the moment she tried she was immediately rejected then he thought to himself (Fuck, No, It's too weird, you're my mother, I'm already Two years old, I can drink normal milk) it wasn't that he doesn't want to eat, it was the fact that he was a teenager in the body of a child, it was too weird for him to suck on his mother, he felt as if it was too much, he was her kid, it wasn't as if he teleported or something like that, so he doesn't see her as a potential love interest

"OH Izuku, you grew too fast" Izuku looked at his mom and then said "I love you mommy, but I'm not hungry" Izuku's mom held him and then kissed him after saying "I love you too sweet heart"

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3 Years Later

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Both Izuku and Inko where at a Doctor's office, they were trying to see if Izuku had a Quirk or not, and after waiting for a couple of Minutes the Doctor came back, he sat down and then said "I'm sorry little Kid, But it would seem that you don't have a quirk" Izuku's mom was mortified, she has watched her son watch Super Hero news since he started to understand how to speak and talk, so she assumed it was very shocking for her son to know that he doesn't have a quirk so she said "Are you Sure ? Maybe you made the wrong test, Please try again!" Izuku looked at him mother, and saw that she felt sad so he said "Mother, Did you actually believe this Goo Brain?" The doctor was taken aback and he was taken aback more after hearing Izuku Continue talking "Ha, This guy is probably an Anti-Vaxer Look at this idiot, he can't even tell if I have quirk or not, How did you get you medical degree ? did you buy it on Ebay ? Fucking Brain dead Idiot"

After Few Seconds of total silence it was Inko that spoke "Izuku ! That isn't right, Apologize Immediately, I didn't raise you like this" Izuku looked at him mom than he said "Of course you didn't raise me like this, You're a super nice mother that only raised me in a good way!" Inko feeling happy with her son hugged him and said "Oh, My dear, lets leave, even if you don't have a quirk you will be a great person" Izuku walked with his mom out of the doctor's office while saying "But I have a quirk"

The doctor that received super Effective damage watched them leave and then said "how did he know that I use Ebay, Also why was I attacked ? Kids this day's *sigh*"

...

Few days later

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Izuku was allowed to go outside close to their house but of course he ignored that and went to the City forest, there he was experimenting using his Servant's Quirk "Alright! Let's get to it" closing his eyes Izuku started to feel something move inside his body, and then he felt it, and excruciating Pain followed up with his body heating up "Kid, Stop, Don't transform into me !" Of course the cries of the other man couldn't be heard, so Izuku fell on the ground as he passed out

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Few hours later

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Izuku woke up in the forest, he looked around him and then he said "Shit, Shit, shit, It's Too fucking late, I'm Five, please tell me she didn't call the police" Izuku went rushing back to his house, but as soon as he sped up, he sensed it, his body was fast, faster than a normal human by far, it was as if he was using a Quirk! "What the hell, since when was I this fast? is the servant power active, but why have I not trans-" he stopped, and looked down, and he saw it, he was taller, than usual, as matter a fact his body was muscular and tall, his clothes changed as well, he was now wearing black Pants and his chest was bare, only a white small jacket around him, as for his left hand he now saw that it was wrapped with red thing? "What the hell? What am I?" after few seconds of focusing he remembered that he heard someone tell him not to transform

"Huh, Toke you long enough!" Hearing someone inside his head Izuku was shocked "What? Who are you? What the fuck are you doing inside my body?" hearing the way the kid spoke the person inside Izuku said "What a vulgar way of speaking *sigh* my name is Senji Muramasa, you tried to transform into me, of course, since my body doesn't exist in the throne of heroes, you have transformed into Shirou Emiya, well only partially *sigh* Listen, you are now hero, you have my body and you can use it for a couple of minutes every time you use that quirk ability of yours, but even when you go back to your own body, you will still be a young version of me, this will give you strength so don't get mad because well... your original Body... uhhm...It... it has exploded"

"WHAT????"