Our Love Story (Izuku x OC)

Welcome to U.A.

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"Mari-chan! Mari-chan!" I hear a tiny voice calling.
"Hm?" As I turn around, I was met by a tiny little cute face.
"Oh, good morning Eri. What ya need" I said tiredly.
"You're gonna be late for your first day of school"
When I heard those words come out of her mouth, shot out of my bed and onto the bathroom to take a quick shower, change, brush my hair, brush my teeth, and do other stuff. After all that chaos, I run down stairs and I see my brother casually eating breakfast.
"Why are you in such a hurry? " Hitoshi asked.
"We're going to be late for school!! "
"No we're not, calm your ass down"
That's when I finally glance at the clock, 7:03 AM.
I slowly turn around and see Eri snickering to herself.
"ERI!! YOU TRICKED ME!!" I said as I chase her around playfully.
"Anyway, did dad already leave?" I asked.
"Yep, he said he'll meet you in class"
"Ok"
Soon it was finally time to leave. I  dropped Eri at my neighbors house and said goodbye to her, and I made my way to school.

Around 10 minutes later, I decide I want to get some coffee, or something with caffeine, or else I'mma be grumpy all day. So I head to the local Starbucks, and get my self a Java chip frappe.
After I got my drink, I headed to school.
I was peacefully scrolling through Insta, when I bumped into someone and almost spilled my drink.
"HEY! WATCH WHERE YOUR GOI-" my sentence was cut short because when I looked up, I was meet by the biggest, most adorable, emerald eyes I've seen.
"Oh, I'm v-very so-sorry" he said.
"... Oh! No no no no no, it's ok. It was technically my fault for not looking where I was going" I said while sweat dropping.
"Uh, anyway, I'm MariBelle Aizawa. Nice to meet you" I introduced myself.
"I'm Izuku Midoriya" he responded.
"Well I guess I'll see you around!" I said while walking away.
'He was so cute! I wonder if he'll be in my class!'

When I made it to my class, I noticed I was the first one there.
'Hm, cool. I'm first!'
So I got a little idea to write on the board 'Welcome to UA' in a big fancy font. 'Let's just hope that Dad doesn't erase this' After, I went back to my seat and continued to watch the last episode I left of on last night of my favorite show.
About 5 minutes later, a guy with blue hair, and a guy with white and red hair came in. Then after them, I saw a familiar ash-blonde poof ball. 'OMG!!' I run out of my seat and yeeted myself onto him.
"KATSU-KUN!!!!!!" I could tell I caught him off guard cause we fell on the floor.
"Huh!? WHAT THE FUCK MARIBELLE! GET THE FUCK OFF ME!" he yelled, but never the less, hugged me back. You see, he has a small soft spot for me. (Keyword: small) But I can tell he loves me, even though he doesn't like to show it.
After that, more people started to come in.

Once I went back to my seat, some people started to introduce themselves. The first people to greet me was a dude with red spiky hair, and shark teeth, a guy that looked like Pikachu, and a girl that look like an alien.
" Hi! I'm Eijiro Kirishima!" the red haired said.
"Hiya! I'm MariBelle Aizawa."
"Well hello cutie, I'm Denki Kaminari." Pikachu said while winking. 'He looks like Pikachu!'
Finally the girl introduced herself, "Hi! I'm Mina Ashido!"
"HI! It's nice meeting y'all!" I respond. Then we started talking and getting to know a little bit about each other.
Not even 10 minutes later, Katsuki is getting yelled at by the blue haired dude. So I walk over to Katsuki's seat and smack him on the back of his head.
"WHAT THE FUCK WAS THAT FOR!?" he yelled at me, which didn't bother me at all.
" Cuz you need to learn to respect things and people, you asshole." I said nonchalantly.
After I said that, the blue haired guy looked at me like 'what just happened'.

I would say a good 15 more minutes passed, and I saw Izuku walk in. All of a sudden Katsuki got really really mad. 'Y u mad, y u sad when u can be glad' I used my telepathic quirk to tell Katsuki in his mind. Then he just GLARES at me with the intensity of a very very very angry wolf. 'Dude chill'
Was there some type of beef between Katsu and Izuku I did not know about?