This is basically a rewrite of ...a person's video.. That makes sense right? Whatever anyways check out ThaGuyXii on youtube (it's his 'what if deku was subzero' series)(i will be changing it a tiny bit, not his story just add my funny parts .... Maybe funny parts)
Narrator POV
On july 15th 2005 a green haired woman just gave birth to a green haired baby boy that has white eyes and is pretty cold. The green haired woman named Inko and her husband Hisashi are there looking at the boy because they are amazed that their baby already has a quirk already but also nervous. Over the years it's really hard to take care of their son named Izuku because he's a baby he doesn't know how to control his quirk so a normal day with baby izuku is ice in specific places and rooms cold like really cold. Although once Izuku got around preschool age (3-4) they told him to get better control of his quirk
So before preschool Izuku's already been told that his quirk is amazing before he even knew what people were saying to him. So whenever Izuku walks into a room he's not gonna be shy he's gonna dominate it. On Izuku's first day of pre school he walks in and the temperature drops like 10 degrees and everyone feels it. Izuku walks to the front of the class and stands there about to speak
Teacher: I didn't tell anyone to introduce themselves but okay, go ahead
Izuku:My name is Izuku Midoriya and my quirk is called cryomass (i think that's how you spell it)
Everybody else: 'the f**k is cryomass'
What izuku does is demonstrate by forming ice.
The other kids: woooooaaaaaahhh
The kids are amazed because none of them have their quirks yet. Especially one spiky blonde haired boy who was named katsuki 'that is so freaking awesome' he thought.
Katsuki:that's so cool you already have your quirk
Izuku:already got my quirk? I was born with my quirk
Izuku coolness factor: IT'S OVER 9,000
After that izuku walks down and sits down for class to start. Everyone even Katsuki are amazed by Izuku because they know that hes top dog of the class
Students other than Izuku and the teacher mind
Izuku: look at me, look at me *slaps teacher* i am the captain now
Reality
Over time everybody starts getting their quirks and when katsuki gets his explosion quirk he gets a bit ballsey and he starts thinking 'technically my quirk is stronger than Izuku he's just ice'.
And what i mean by ballsey is start to mess with Izuku a bit but not go all out just yet just little things so one time during class he grabs Izuku's notebook
Izuku:give it back *in a monotone voice*
Katsuki:or what?
Izuku starts to let off some ice, and Katsuki puts down his notebook and says
Katsuki: oh my bad i was just messing with you, you need to stop being so sensitive
What Katsuki is doing is trying to see where he can mess with him. Although Izuku has a somewhat an older person perspective because since he had his quirk so young people have been throwing life lessons at him, and that is how he carries himself as well so whenever kids play for recces he does his own thing and reads a book or something.
Timeskip:Middle school (middle of the year)
One day in class Izuku is in class reading. And catches everybody's attention even when he is doing nothing because of his demeanor and the way he sits. And everybody in class is thinking like Izuku owns the class and they know it.