Boku no Hero Academia: OP Male Reader's edition

Quirk Apprehension Test

After the small talk between the principal and your father, you went to your classroom. You arrived without searching for it, because you arrived too soon before the talk and went for a walk. The principal made you another favor, to be more familiar with your classmates he showed you pictures along with his names; so you wouldn't be socially awkward.

When you arrived, almost all the classroom had already arrived; since only 41 students passed (if you check the manga, the number don't match... Supposedly only 36 passed; and divided that in two classes, it should be 18 and 18 right? If you check the result of the quirk apprehension test, there are 20 students in A-Class) the test, they divided it in half and decided to left you in class A, you scanned the remaining seat and took the seat at the bottom, near the windows. At the same moment you took seat, a guy with ash blonde hair put his legs over his desk, you identified him as Katsuki Bakugou.

Y/N: *sigh* Man... There are people that are inconsiderate... *you were about to stand up*

You have been taught manners, values and you forged your own principles along with some others your father told you. Albeit when you stood up, there was someone closer to Katsuki that approached him: Tenya Iida. Someone opened the door, but seemed like nobody noticed probably everyone was meditating that they passed or getting to know each other.

Tenya: Don't put your legs on the desk! Don't you think it's unrespectful towards your classmates?!

Katsuki: Nah, I don't think so... Which middle school are you from anyway, idiot?

Tenya: A private school of c-... [arrogant coughcough] *ahem* Soumei Junior High, I'm Iida Tenya

Katsuki: Soumei?! So you're an ELITE, huh?! Now that's a stronger reason to fucking end after all!

Tenya: A reason to end me?! *horrified* What a nerve! And you want to be a hero? *notices someone in the door*

Midoriya Izuku... That was the name of this scaredy-cat, the same kid that saved a girl in the test.

Tenya: *approaches Midoriya* Hello, I'm Iida Tenya from Soumei-

Midoriya: R-Right, I-I overheard... I-I'm Midoriya. Nice to meet you, Iida

Tenya: *Serious face* Midoriya... I must hand it to you. You see through the façade and knew about the actual nature of the practical skills exam, didn't you? *shakes his head* I was too blind and I misread you! I hate to admit it, but you were the best man!

Katsuki: Deku...

The rest of the class was staring at him, in that instant a brunette girl showed up.

Y/N: *you decide to sit down and watch* Ochako Uraraka... The girl who Midoriya saved, and the one who saved him from being mush *you murmured*

Uraraka: Ah! It's you, the curly-hair kid!

Midoriya: Ah! *gets startled*

Y/N: *you can't help it but giggle about Midoriya* Indeed, a scaredy cat

Uraraka: Glad I found you! *smiles while getting closer to Midoriya* You made it! It's just like Present Mic said!! Way to go! By the way... That punch was out of this world! *punches the air*

Midoriya: *Embarrassed to the point of hiding his face* No, it's not like that, uuuh, that is to say, it was really thanks to you speaking on my behalf... I... uuuuh

You saw Katsuki was pretty serious, just staring at him. You deduced from this, and the fact that Katsuki called him Deku instead of his actual name, that these two didn't get along and shared a complicated past.