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What Happens When You Interdimensionally Time Travel Into BNHA?

Summary:

You're a teen getting ready for bed, it's around midnight and when you walk into your room to go to sleep you suddenly end up tripping through the door of class 1-A. In your pajamas. Very tired. And very disoriented.
Your first thought when you realized where you were since it was so impossible, glancing around at all of the battle ready students and the battle ready teacher, was, "Did I knock myself out or get a concussion when I tripped?"
"Y-you don't look knocked out, a-although you might have a concussion, y-you did hit your head p-pretty hard on the ground."
Midoriya, of course Midoriya can speak almost fluent English... wait... "I said that out loud didn't I?" At his empathetic nod I groaned.
"Well Interdimensional Time Travel, this should be fun."

Notes:

Hi, I'm FallLance, this is my first fic on this platform, you may have seen my name on other platforms here or there, if not don't worry I haven't really been all that popular anyways. I will post any warnings that I think of at the beginning of the chapters because I don't want anyone to be triggered. Well anyways, if you found this, enjoy. :)

Also constructive criticism and ideas may be helpful and are encouraged.

Chapter 1: Intro to You & Stumble Into BNHA

Chapter Text

Warning: mention of reader being bullied

Everyone around you would call you a bit of a tomboy, you like playing sports (watching is boring most of the time) and climbing just about anything you can. You also tend to get along with the boys more than the girls too, which causes some issues because you don't really have friends, you've gained a few and lost a few over the years. The girls were jealous about you hanging out with the boys, the boys think you're weird, it's a lose lose situation.

You were also bullied by a group of boys until you switched to online school. Actually to be more specific, you punched a couple of them when you were tired of the teachers and principals doing nothing and they stopped bullying you. You still switched to online school because you weren't too excited about staying in a school district that did nothing to help you.

You also can't just choose one fandom to love, you love multiple different fandoms but recently you've gotten hooked on the BNHA fandom. BNHA is one of the few manga/anime that you actually enjoy. Right now you're in your Harry Potter pajamas on YouTube finishing watching one of the BNHA react to Deku gacha life things. You look over at the clock and you double take, it's already 11:45pm.? You get up turning the tv off and head to the bathroom to get ready for bed.

When you're finally all ready for bed you go to your bedroom and as you enter the doorway to your bedroom you trip. Over seemingly nothing and since you weren't prepared to trip and you were tired you fall all the way to the ground and your head meets the ground of the oddly bright room. It shouldn't be bright, you didn't turn on the light since you were just going to crawl into bed. You look up and you are most certainly NOT in your bedroom. You are in a classroom. A classroom that shouldn't exist because 1-A shouldn't exist. Let's just say you were extremely disoriented.

Your first thought when you realized where you were since it was so impossible, glancing around at all of the battle ready students and the battle ready teacher, was, "Did I knock myself out or get a concussion when I tripped?"

"Y-you don't look knocked out, a-although you might have a concussion, y-you did hit your head p-pretty hard on the ground."

Midoriya, of course Midoriya can speak almost fluent English... wait... "I said that out loud didn't I?" At his empathetic nod I groaned.

"Well Interdimensional Time Travel, this should be fun."

"Um... M-miss? Did y-you say Interdimensional Time Travel?" Midoriya askes. "Interdimensional means between dimensions and Time Travel implies you're from a different time. I wonder whenyoucamefromandhowyougothere?Alsohowdidyounottriggerthealarms?Didyouwarphere?What'sitlikeinyourdimension?"(when you came from and how you got here? Also how did you not trigger the alarms? Did you warp here? What's it like in your dimension?)

"Ok, slow down there, let me answer what I can. I came from the year 2022, idk how I got here. Um... the alarms right uh... they could be silent? Idk how I got here so idk if I was warped. Uh and there are no quirks in my dimension."

"You're correct that the alarms are silent!" A voice chimes in from my left and I jerk toward where it came from to see Nedzu clap. "Or at least for this they are. Also the reason you're here could be because of Miss Hatsume Mei firing off a gadget that she had no clue what it would do, only that it would work. Although it does seem to have a bit of a delay if that is the reason."

"Of course there would be a delay! My baby was reaching across time and space to bring her here! Something like that would not be instantaneous! Even for my babies! Plus you have to figure in the fact that she's still alive and the fact that a person was transported rather than just a thing." Hatsume said, popping up out of nowhere.

"Even to me this makes sense, although I'm slightly surprised that Hatsume can speak English. I probably shouldn't be though because she wants everyone to buy her so-called babies. Also can you work on reverse engineering it to send me back into my universe?"

"Ooo a challenge, and yes I want everyone to buy my babies and that is why I learned English. I'll go work on that challenge baby right now!" She said dashing off to what I presume to be the labs.

"Oh, I haven't introduced myself yet. Am I a bear, a mouse, or a dog, I'm the Principal."

"Supposedly you're a stoat. Either that or a chimera." Everyone upon hearing my words looks at Koda. Who looks shocked for a moment and then looks closer at Nedzu before giving me a thumbs up.

"So that's a yes for stoat?" I ask and he nods. "Also sorry for putting you on the spot like that."

"It's f-fine, I'm gonna h-have to get better at talking in front of g-groups of people at some point." He assures me in a soft voice.

The class and teachers stare at him for a moment before Midoriya asks him something. Koda looks confused and seems to be shaking his head and denying it.

"Um... What's going on?"

"I just asked him if he knew that he just spoke English."

"Let me guess, he didn't and doesn't know how to speak English normally. Does this mean humans are included as animals to his quirk? Also can he only understand mammals and birds/reptiles or can he understand fish as well? Another question is can he understand what Aoyama says when he switches to French randomly?"

"I can understand all animals, even fish. Also A-aoyama-kun switches to French randomly?" Koda questions.

"Oh you poor sweet summer child, wait... does this mean that Shinso and Koda are control buddies? Have you ever used your quirk on a person, Koda?"

"I've never t-tried, and also 'poor sweet summer child'?" He asks confused.

"It's used to imply and exaggerate someone's innocence. Also you should probably try to use it on a person. Oh and if you can, you won't have to rely on hand to hand and animals as much, not to say you shouldn't use hand to hand and maybe a weapon or two, but it might make your hero work easier since you could probably control them to give up or go to jail much like Shinso can."

"That's so true!" Exclaimed Midoriya, "You and Shinso-kun would probably make a great underground hero duo! Koda-kun, you could use animals to track down the villains and their lairs and thenyouandShinso-kuncouldtakethemandtheirempiresdown!Oooifyougotabloodhoundoranotheranimalwithagreatsenseofsmellitwouldbegreatformissingpersonscases!"(then you and Shinso-kun could take them and their empires down! Ooo if you got a bloodhound or another animal with a great sense of smell it would be great for missing persons cases!)

"Midoriya, slow down bud, I don't think Koda got all that, maybe you could write your ideas down for him to look through?"

"Yes please, Midoriya-kun." Koda said with a small smile.

"Ok, sorry, I was probably being a bit overwhelming there. Also what does bud mean?" Midoriya says, rubbing the back of his neck in embarrassment.

"Don't be embarrassed, Problem Child, those were some good ideas, you just need to get better at slowing down your thoughts so that others can actually understand what you're saying."

"What Aizawa said, and I'm pretty sure bud is short for buddy."

"Indeed, Aizawa and our guest are correct, Midoriya-kun. Also I just realized that we don't have your name." Nedzu said.

"Oh right, I'm F/N L/N or for you guys L/N, F/N."

"So L/N-san, you seem to be familiar with us. How is that?" Asked Nedzu.

"Umm... you might want to get Detective Lie Detector here before you start asking a bunch of questions that the answers to may break your mind."

"Do you mean Detective Tsukauchi Naomasa?" Asks Midoriya, tilting his head like a confused puppy.

"Yep that's the one, I can't figure out how to say his last name, so I just call him that."

"I alerted him first thing, he should be arriving with his partner Sansa in a minute or two." Nedzu says, clapping.