AN: Hello, my readers. Here I bring you my first BNA crossover.
I loved that anime and I hope they make a second season, it deserves it.
Anyway, I hope you enjoy this story.
I don't own anything except the OCs.
Anima City, a city where beastmen could live peacefully and away from humans.
A couple of months had passed since that incident in which Alan Sylvasta tried to make the beastmen go crazy with the Nirvasyl Syndrome in order to make the beastmen become destructive monsters so he could eliminate them from the world simply because they were mongrels.
However, thanks to Michiru Kagemori, Shirou Oogami and Nazuna Hiwatashi were able to cure the beastmen and stop his plans.
Now peace reigned in Anima City and the beastmen went about their routines.
At that moment, we found ourselves on the rooftop of our protagonists' home, where Michiru was practicing some basketball, while Shirou and Nazuna were watching sitting on a bench.
Despite the fact that beastmen had the ability to transform into humans, Michiru preferred to stay in her beastman form, since, after so long in that form, for her the human form was like wearing heels.
Michiru bounced the ball a couple of times before throwing it towards the basket, hitting it completely right.
"Yes! Three points!" exclaimed Michiru excitedly.
"Very well done, Michiru." said Nazuna applauding her friend.
"Not bad." said Shirou with a serious expression as Kuro, his crow let out a caw.
"Oh, come on, Shirou, why don't you enjoy yourself a little?" said Michiru.
"She's right. It's a quiet day today and there's no crime happening in the city." said Nazuna.
"Precisely. The quietest days are usually the days when problems arise." said Shirou.
"How can you be so negative?" asked Michiru.
"Call it experience." said Shirou.
Suddenly, a dial tone sounded coming from Shirou's phone, who picked it up to check who it was.
"What did I tell you?" asked Shirou before accepting the call. "Shirou speaking. I understand. Okay. I'll be there as soon as possible." said Shirou hanging up and getting up from the bench.
"Who was that?" asked Michiru.
"That was Mayor Rose, there seems to be a problem at city hall." said Shirou.
"Can I come with you?" asked Michiru with a smile.
"No." said Shirou quickly.
"What? Why? After all we've been through together." said Michiru.
"It's police work, not child's play." said Shirou.
"He's right, Michiru. We are still young, so it would be better to leave this to the experts." said Nazuna.
"You should listen to your friend." said Shirou making the tanuki girl pout at that. "You should be studying or something, not getting involved in police matters." said Shirou before transforming into his beastman form. "Don't even think about following me." said Shirou before jumping into another building in the direction of the city hall.
Michiru was annoyed.
After all she had done with Shirou since arriving in the city, she thought he could trust her to the point of considering her his partner in fighting crime, but he still treated her like a child.
It was then that a smile graced his face.
"Michiru, don't even think about it." said Nazuna with a frown.
"What do you mean?" asked Michiru acting innocent.
"I know you very well and you have that 'I'm going to do it even if I'm told otherwise' face. Shirou has asked us not to get involved and that's what we're going to do." said Nazuna acting like a responsible person, or beastmen.
"I don't know what you're talking about." Michiru said with a shrug before approaching the edge of the rooftop. "I'm just planning to take a walk and if I stop by the town hall, nothing will happen."
"But Michiru…" began Nazuna before her friend turned her arms into wings.
Due to a medical error, she and Nazuna received, through a transfusion, contaminated beastman blood.
This caused both of them to become beastmen, but unlike normal beastmen, they had the ability to transform their bodies into parts of other animals.
Before Nazuna could continue speaking, Michiru took flight and headed straight for the town hall.
"*Sigh* What am I going to do with her?" asked Nazuna before turning her arms into wings and following her friend into the air.
At city hall, they were in an office, Shirou along with the mayor of the city, Barbara Rose and her secretary.
"I'm glad you got here quickly, Shirou." said Barbara.
"Well, what exactly is going on?" asked Shirou.
"Before that, shouldn't we let the rest of the guests in?" asked Barbara with a small smile as she pointed to the window.
Shirou turned around and frowned as he saw Michiru and Nazuna flying out of the building, with the former having a cheerful smile while the latter had a nervous smile.
Shirou let out a sigh of annoyance before going and opening the window, allowing the two girls to enter the office.
"I thought I told you not to follow me." said Shirou.
"Well, next time you should be more insistent." said Michiru with her arms crossed.
"For the record, I tried to stop her." said Nazuna trying to get out of a scolding.
"It's okay. It doesn't happen. It might need your help." said Barbara.
"See how you needed me?" asked Michiru with a smirk.
"Anyway, what exactly happened?" asked Shirou putting aside the subject of girls and focusing on his duty.
"Apparently, someone has broken into the town hall archives and stolen certain documents." said Barbara.
"What kind of documents?" asked Shirou.
"About the events relations with Alan Sylvasta and Miss Kagemori and Hiwatashi." said Barbara.
"I don't understand. What would he want those documents for?" asked Michiru.
"I don't know, but we know that the thief managed to escape before the guards got him." said Barbara.
"So he wants Shirou to use his excellent sense of smell to track him down, right?" asked Nazuna.
"Exactly." said Barbara.
"All right. I'll get on it right away. You two, come with me." said Shirou looking at the two girls.
"Does that mean you'll let us accompany you?" asked Michiru.
"Just to keep an eye on you and make sure you don't get into trouble." said Shirou.
"Hey, don't look at me. That's more Michiru's thing than mine." said Nazuna, earning a frown from her friend.
Soon after, the three found themselves in a room full of computers and cabinets with drawers.
"According to the mayor, this is where those documents were stolen." said Michiru.
Immediately, Shirou transformed into his beastman form.
"Right. Let's see what our intruder did." said Shirou before closing his eyes.
Using his ultra-enhanced sense of smell, Shirou could sense various smells and in his mind, those smells took the form of people entering and leaving the room, so they must be workers.
However, he soon encountered a new smell that took the form of a person entering the room as he looked around before proceeding to touch a computer, enter some commands and save it to a flash drive.
Once he completed that, he left and Shirou opened his eyes.
"This way." said Shirou heading in one direction with the two girls behind him.
They followed the scent trail of the intruder towards the rooftop, where Shirou caught a glimpse of the scent trail heading towards a certain place.
"Looks like he's headed for the Medical Center." said Shirou.
"Why would it go to that place?" asked Nazuna.
"For no good, for sure." said Michiru.
"I agree. Let's go." said Shirou before jumping from one building to another, with the girls following him with their arms turned into wings.
Meanwhile, in a room full of packages at the Medical Center, a person could be seen inspecting the packages on the shelves.
That person was the intruder they were chasing, who was dressed in black along with a hoodie, sunglasses and a bandana covering the rest of his face.
"Let's see, according to the documents, it should be around here somewhere." said the intruder as he kept looking at the packages until... "Bingo!" he exclaimed when he saw a small box with a toxic and dangerous sticker on it.
The intruder took the box and opened it to check its contents.
"Perfect. Now I just need to do a little research and my plans will be fulfilled at last." said the intruder.
"Not so fast, friend!"
The intruder quickly turned his head to the entrance of the room to see Michiru, Shirou and Nazuna standing in the middle.
"You're under arrest!" said Michiru pointing at the intruder.
"That should be Shirou saying that, not you." commented Nazuna.
"You'd better leave that where it was and give yourself up for good." said Shirou.
"Oh, I'm sorry, but I'm not about to let you ruin everything." said the intruder before pulling a ball out of his pocket and throwing it on the ground in front of the three of them, causing a smokescreen.
As the three beastmen coughed from the smoke, the intruder took the opportunity to escape through the entrance, pushing Michiru in the process.
"He's getting away!" said Michiru before chasing after the intruder.
"Michiru, wait!" exclaimed Shirou trying to stop the tanuki girl.
Michiru chased the intruder, who was carrying the box, through the corridors of the building, but the intruder was far away from the tanuki girl, who wanted to catch up with him as soon as possible.
At that moment, Michiru transformed her legs into those of a cheetah, making her speed increase tremendously and she ended up catching up with the intruder in a matter of seconds.
She rammed her body into the intruder, sending him crashing to the ground as the box was thrown into the air.
Although she didn't know its contents, she could tell from the labels that it was something dangerous, so she jumped up and grabbed the box before it hit the ground.
"Phew. Thank goodness. Well, you see who has the last laugh..." began Michiru turning around to see the intruder supposedly knocked down, but instead, she received a punch in the face that knocked her to the ground.
"Laugh better." finished the intruder before retrieving the package. "You may be a beastman with special powers, but you're nothing but a brat." said the intruder before quickly walking away.
Soon after, Shirou and Nazuna arrived on the scene as Michiru sat down with a groan.
"Michiru, are you okay?!" asked Nazuna with concern.
"I'm fine, but that guy hit me. Now he's really pissed me off." said Michiru getting up.
"Don't get carried away with anger, Michiru. He can't be far away." said Shirou before the three continued the chase.
The intruder continued to run through the corridors with the package in his arms, but he was beginning to tire.
"Damn, with that three chasing me, I'll never get away. I have to throw them off somehow." said the intruder before running into a pair of doors at the end of the hallway. "Perfect." said the intruder before running towards the doors.
As he approached it, he pulled out a small tech stick that he inserted into the ID panel next to the door.
Seconds later, the panel let out a beep of acceptance before the doors opened, allowing the intruder inside.
Michiru and the others continued running down the hallways until Shirou suddenly stopped.
"Wait. He seems to have taken another route." said Shirou.
"Which way did he go now?" asked Nazuna.
"That way." said Shirou pointing to the doors through which the intruder passed.
The three approached the doors and saw the identification panel.
"Damn. We need a pass to get in." said Michiru.
"Maybe one of the workers will lend us one." said Nazuna.
"We don't have time for that." said Shirou before slamming the door hard, managing to send them flying off the hinges.
"Oh, right. Super strength." said Nazuna remembering the werewolf's abilities.
The three of them entered the room and the first thing they noticed was that the room was much more enormous than they thought and, in the center, there was some sort of ring-shaped machine.
"What is that thing?" asked Michiru.
"I think the mayor told me about it. It is a matter teleporter." said Shirou.
"A matter teleporter?" asked Nazuna.
"Yes. Apparently, the mayor has in mind to use this device to take beastmen anywhere in the world and vice versa." said Shirou.
"That way, they won't have to deal with hunters or other humans on their way to the city." said Michiru briefly recalling how difficult it was for her to get to the city.
"That's right, but it's still in the experimental stage, so it might be dangerous." said Shirou.
"Exactly."
Quickly, the three of them turned around to see the intruder standing next to a control panel.
"And that will be useful for me to be able to get rid of you." said the intruder.
"Give up! You're finished!" said Michiru.
"Quite the opposite. You're the ones who are finished!" said the intruder pushing some buttons.
"Don't do it. You don't know what can happen." said Shirou trying to stop the intruder from activating the device.
"Maybe, but if it means being able to fulfill my plans, then, I will." said the intruder before pressing one last button.
That caused electrical sparks to show through some wires that were connected to the machine.
Suddenly, before anyone could say anything, a vortex formed inside the ring and electric lightnings shot out, striking various areas of the room and forcing those who were there to move quickly to dodge them.
Then, a strong wind began to blow in the direction of the vortex like a vacuum cleaner.
Michiru jumped to the side to dodge another incoming lightning, but then, the wind pushed her and she began to be pulled into the vortex.
"Shirou! Nazuna!" shouted Michiru.
"Michiru!" shouted Nazuna.
"Quick! Grab my hand!" shouted Shirou, who was holding on to a machine while stretching out his other hand.
Before she could go any further, Michiru stretched her arms until she managed to reach Shirou's hand and hold on tightly.
Soon after, however, Nazuna began to be sucked into the portal.
"Nazuna!" shouted Michiru letting go of one hand to grab her friend. "Don't let go of my hand!"
"I don't intend to!" said Nazuna grabbing her friend's hand with all her might.
As Shirou tried to keep his grip on the tanuki girl, he began to hear a giggle and turned his head to see the intruder clutching the same machine as him as he was laughing at his situation.
"I didn't think this would happen, but this is better." said the intruder.
"Damn you." said Shirou throwing a growl at him.
"Snarl all you want, but if you want to live, you'll have to let something go, either this thing or that little friend of yours. So which do you choose?" the intruder asked.
"You want to know what I'll choose? All right, then..." said Shirou before releasing his grip on the machine to quickly grab the intruder's leg, much to his surprise.
"What?" asked the intruder.
"If I'm going down, you're going down with me." said Shirou.
"You're crazy! Let go of me, you mangy dog!" exclaimed the intruder trying to free his leg, but in the process and because he was holding the package with one hand, he ended up losing his grip on the machine and in the end, they all ended up being sucked into the portal.
"Hold on to me!" said Shirou drawing the two girls into his arms.
The four screamed as they were brought towards the vortex and when they all crossed it, the vortex remained activated for a few seconds until, one of the lightnings it fired hit the control panel, destroying it in the process, which caused the ring device to shut down completely and the vortex to close.
AN: How's this for a start? I know the vortex theme is a bit repetitive, but what other way is there to travel, eh?
If I've made any mistakes, let me know.
See you in the next chapter!