Hunters as heroes (HxH x MHA x Fem OC)

Chapter 1

"Hey Zinith!" I hear a familiar voice call and look up to see Gon, Killua and Alluka waving at me.
"Hey guys," I reply, walking the rest of the way up to them and sitting down on the blanket that they had laid out on the grass outside of Mito's house. "Sorry it took me so long the boat hit a storm and so the journey took a little longer than expected."
"It's fine Zin, Alluka and I didn't get here until late last night so we were running a bit late as well."
"Big brothers right you don't have to worry."
"Thanks guys," I say, patting Alluka on the head.
"Hey Zin, why didn't you just use your Nen ability to get here?" Gon asks and before I could answer Killua was hitting his head.
"Because she's never been to Whale island before so she wouldn't have been able to set a checkpoint up idiot."
"Oh yeah I forgot about that," Gon says sheepishly rubbing the back of his head.
"It's fine Gon," I manage to say through my laughter as I watch the scene before me unfold. "Although that reminds me that I probably should set up a checkpoint here to use in the future."
I close my eyes and start picturing what is around me so that I can set up a checkpoint when I hear a yelp of surprise from Alluka. I open my eyes and snap my head towards her just in time to see her start to glow and flicker in between Alluka and Nanika.
"Big brother?"
"Killua?" They ask and then all three of them turn to look at me as I start glowing as well.
"Everyone grab on to each other!" I yell over the screeching that can now be heard.
I feel Gon grab my left hand and I reach out with my right to grab Alluka and Nanika while they grab on to Killua and Killua grabs Gon's hand. Then my vision goes black and I feel myself getting pulled into something before I pass out.
I blink open my eyes and realize that I'm falling from the sky, I glance around and see that the others are all falling around me as well.
"Reinforce yourselves with Nen!" I hear Killua yell over the whistling wind as he grabs Alluka and holds her before he reinforces himself.
I quickly wrap myself in Nen and hope that it will be enough as the ground comes more and more into focus. As we get closer I realize that we're about to land in a dirt field outside of a building.
"Brace for impact!" I yell right before we hit the ground.
As I land I manage to stay on my feet and look up to watch the others only to realize that Gon is directly above me, he lands on top of me and I let out a sound of pain and surprise as we both collapse onto the ground. 
"Ow, Gon get off your heavy" I complain as Killua lands on his feet next to us carrying a now asleep and still flickering Alluka and Nanika.
Killua starts laughing at us and I tell him to shut up as I shove Gon off of me.
"At least I landed on my feet, it was Gon that fell on top of me and knocked us over." I look down at Alluka and Nanika worried.
"Don't worry before they fell asleep they said that they were fine, just tired because they keep switching, although I hope it stops soon or else they might just sleep for a couple days."
"Ow! Killua, Zinith pushed me,'' Gon complains from the floor.
"You deserved it for landing on me" is my only reply before I turn away from them just in time to see a group of people walking over to us, "um guys there's people" I say pointing.
I watch as Killua tightens his grip on Alluka and takes up a defensive position but then Gon draws my attention by jumping up and waving enthusiastically at the group approaching.
"Hey kids, what are you doing here?" asks one of the adults that is dressed in all black with what look like white bandages around his neck.
"Um, that is actually a great question," I say, glancing around us to try and figure out where we are. "Could you maybe tell us where we actually are?" I ask turning back to the man and the people around him.
"You're at UA High," a kid with messy green hair says.
"And where is that?" Killua askes.
"How do you damn extras not know where UA Is!" A blond kid yells at us and I turn to face him and roll my eyes.
"Um 'cause we don't dumb ass, so how about you don't yell at us,"  I hear him keep yelling at us but ignore him and turn back to my friends only to see that Gon has disappeared.
"Where did Gon go?" I spin around trying to find him and see him talking to some of the people in the group behind the man dressed in black.
"Gon come on, you can't just go up and talk to random people all the time," I groan and he turns to look at me.
"But they're really nice and fun to talk to."
"Idiot" I hear Killua mutter behind me.
"So is no one going to answer our questions on where exactly UA High is? If not we might as well just go find out where we are by ourselves."
"Hey Zinith, didn't you set a checkpoint outside of Mito's house? Can't you just teleport us all back?" Gon asks coming back to stand by me, Killua and Alluka.
"I would but for some reason none of my checkpoints are coming up, it's like they've all been wiped away."
"To answer your question young ones UA is located in Musutafu, Japan." A buff blond adult answers.
"Do you know where that is Killua? You traveled a lot more than me or Gon so you're the one most likely to know where we are."
"I have no clue where that is, I've never heard of a place called Musutafu before, as far as I know there is no city by that name in Jappon."
"It's pronounced Japan not Jappon you extras!" The blond yells at us and we all turn to look at him.
"What about Yorknew city do you guys know where that is?" I ask, glancing at Killua and Gon, worried.
"You mean New York in America?" A girl with pink skin askes and I blink as it registers that the girl in front of me has pink skin.
"I have no clue where that is either," Killua says behind me and I glance to Gon only to see he has blown a fuse trying to figure out where that is.
"Well then I guess no one has any clue what's going on. We should probably try and contact the Hunters association and see if they know where we are and why," I say to my friends.
"What is the Hunters Association?" A kid with spiky red hair asks at the same time that a kid with black hair and weird elbows asks "do you mean the Hero's association?"
"What the hell are heroes and how do you guys not know about hunters?" Killua snaps.
"How interesting," a rat-like creature says as he appears out of nowhere sipping on some tea.
"How did a Chimera Ant get here?" Gon asks.
"I thought we killed most of them and the others were being watched by the association with Kite," I say.
"I have no knowledge on what a Chimera Ant is. I am principal Nezu. Am I a bear? A dog? A mouse? No one really knows."
"What the hell is that supposed to mean?" says Killua and I have to agree with him, how can he not know what he is and not know what a Chimera Ant is?
"How do you not know what a Chimera Ant is? Everyone knows what they are I mean most people found out about the Ants when they spread out over the world after their queen died"
I hear muttering to my left and I glance that way to see the kid with green hair muttering and taking notes in a notebook I didn't see him carrying before.
"It seems like we know nothing of the place that you call home while you know nothing about this world," the Ant says with a creepy smile.
"Why do you mean 'this world' rat?" Killua askes and his eyes shine with calculation.
"Just that I believe that you four are from an entirely different world, isn't that exciting!" He exclaims.
"How is that even possible principal Nezu? There isn't a quirk that can travel through dimensions," a girl with black hair tied into a ponytail asks.
"Maybe it's a power from their world," a blond with a black streak in his hair pipes up.
"Hey guys," I turn to Gon and Killua. "what happened when I closed my eyes to set up the checkpoint?"
"Alluka and Nanika randomly started flickering between each other and then you both started glowing" Gon explains.
"Maybe your guys' powers mixed, " Killua states looking down at his sister "it would make sense as to why they were so tired, normally switching doesn't tire them out but if they used their power then that would explain it."
"So basically we're stuck here until we can figure out what exactly happened and how to undo it," I sigh, "just perfect."
"How would you four feel about joining my school" the Ant asks and we turn to look at him with varying expressions of confusion.
"Why would we join your school?" Killua questions wearily.
"Killua be nice," Gon says, smacking his best friend's head.
"Guys now is not the right time, but I agree with Killua. Why would we join your school?"
"It's quite simple really, if you join my school I will provide you with a place to stay and money for food and clothes, seeing as how none of you have a guardian currently you will need one while you are in this world."
"So what you're saying is that you need to keep an eye on us now that you know we're from a different world, and putting us in your school and assigning us a guardian is your way of doing that," Killua responds, leaking a bit of blood lust.
Everyone in the group turns to look at Killua slightly scared but Nezu just smiles creepily.
"That is precisely what I mean, and if you wouldn't mind turning off the blood lust you don't want to scare the students."
"They're scared by that little bit of blood lust?" I ask incredulously "that was barely anything, he just let it out to make a point."
"You mean young Killua has such a powerful blood lust that what he just showed is considered barely anything?" The buff blond asks.
"I mean we all have a pretty strong blood lust when we want to, but I have the strongest blood lust with the most control over it," Killua says, sounding bored.
"So if we did join your school, who would be our guardian?" I ask, trying to change the subject so they don't ask about why our blood lusts are so strong.
"Mr. Aizawa would be your guardian," Nezu states and the dude in black whips his head to look at the Ant "and you would be joining his class" the ant's smile seems to grow larger as the man sighs.
"Fine, I guess four more problem children can't be all that bad," the man now known as Aizawa says.
I turn back to Gon and Killua and hold my finger up to speak with Nen letters, "Do we want to join the school?"
Gon holds his finger up "I think it would be fun, I've never been to school before!"
Killua sighs before saying "I mean we might as well it's not like we know enough about this world to live on our own yet. But if the treat is like kids and restricts our freedom I'm leaving"
I smile and turn back to Nezu "We will join your school on one condition, if you guys restrict our freedom or treat us like little kids then we're leaving."
"Of course," the Rat says.
"Then it looks like you have a deal."

2094 words

This is the first fan fiction I have written so sorry if it sucks. I might turn this into an OC x Bakugo but I haven't decided yet.