The scene takes place at night time, everything was so peaceful at Japan. When a mysterious green glow shines through the trees, as a hand with a blue bracelet rises in front of it.  

The hand belongs to a very attractive woman with black hair and red eyes who was running, avoiding gunshots that were being fired at her.

As she runs and dodges the bullets, she runs out of the forest heading towards a dead end, she places her left hand on a motorbike and flips over it as a bullet grazes her shirt and a bit of her skirt as she falls over the edge and onto the top of a passing car.

She then looks up and saw her attacker which is a girl with red hair and eyes wielding a gun as she jumped over the railing and fires her pistol at her. 

As she sees the girl, the woman jumps, avoiding the bullets and heading for another part of the woods in the park to try and lose her assailant, jumping from bushes to trees.

However, the girl managed to catch up as she fired her pistol at the woman. With her quick reflexes, she blocks the bullet with her bracelet, but gets pushed back. 

As she lands on her back, she sees the girl aiming at her, so the black haired girl shoots her hand out and creates a blinding light. This caused the red haired girl to shield her eyes from the light with her arm. Seeing the red haired girl blinded, she took this as an opportunity to escape, heading for the city. 

The red haired girl gritted her teeth in anger as she followed the black haired girl. As the woman was leaping over a few construction signs as the red haired girl follows her at great speed, the woman runs up a flight of stairs to the roof.

The woman burst through the door as she was on the roof top, she then stopped when she looked down to a road where cars were driving by. 

As she realized it was a dead end, she turns back only to find the red haired assailant in the door aiming her gun at the woman and fires, barely missing her but causes her to fall of the roof, plummeting to the ground as she screams in horror.

The voice: That bracelet is proof of our contract. It is an oath bracelet. Since a moderator has chosen you specifically, you will have to join the ranks and fight. You've now become an elite fighter, a Kampfer.

(dream ended)

A young man with black hair and red eyes gasped and started panting as sweat was running down his face. His name was Y/N Kazuma, a former Yakuza living a normal life as a high-school student.

Y/N: Whoa... I had a strange. 

Y/N looks at his alarm clock and the time was 3.am in the morning.  

Y/N: (sighs) I woke up too early, I need to have a drink.

As he goes for a glass of water, it takes him a few minutes to realize his voice sounded weird.

Y/N: What the... why do I sound weird? 

As he started to wonder what's wrong with his voice, he looks down and finds something odd about his body. 

Y/N: That's odd. Is there something different with my body? I can't really see since its dark.

Y/N turned the lights just so he can see better. Only to be greatly shocked at what he finds, as he finds his gender has changed drastically, into a girl, as she screams in shock.

Y/N: What the hell?! Why do I look like a girl all a suddenly?!

As she tries to process at she's looking at, she checks every inch of her self to check if it's real. The first thing was looking at her large breasts that as her nipples pressed hard against the shirt and made a rip.

She then touched and not only did they feel very real, but she also moan because of how good it felt which got her blushing. 

Y/N: (moan) My chest... it's so big and sensitive...

Y/N the felt her hair which was longer, reaching her mid-back with short bangs framing her forehead.

Y/N: My hair's longer too. 

She then moved her hands down to her thighs which were huge, thick, and sexy that made some tears on her pants.

Y/N: (moan) My thighs... 

She looked her behind, her ass was even bigger, much rounder, and even softer when she touched them as it also made a tear on the back off her pants.

Y/N: (moan) Even my ass is bigger...

She checks the spot where it defines male from female, she looks down only to find it's gone, making her realize it's all real.

Y/N: I lost my crotch! How did this happened?!  

As she tries to figure out what happened to her a voice calls out to her. 

???: That's because you've become a Kampfer.

Y/N: Huh? 

???: Only girls can become that.

After she hears a voice she looks around the room to find the source the voice says.

???: That explains why you turned into a girl. Since you've now been chosen by a moderator, you have to become one and fight. You got it?

As she looks around for the source, her eyes land on her desk, where she finds a stuffed animal tiger with an eyepatch and a tendril sticking out of it stomach.

???: Hey, over here!

Y/N: (shocked) What the...?

As the stuffed animal asked if she understands, the girl is too shocked to give an answer until she realizes it was hers.

Y/N: My eviserated tiger? Now I'm going crazy, it's alive. 

Then she notices a blue bracelet on her right wrist.

Y/N: A bracelet? I don't remember wearing this.

As she tries to take it off, she finds she can't as the stuffed tiger speaks.

Tiger: That's your oath bracelet, it will glow as soon as you start to transform. Just for the record, I'm a messenger sent here by a moderator. You can think of me kinda like an angel.

Y/N then grabbed the tigger by the tendril and picked it up. 

Tiger: No, don't! Ow ow ow! Y/N, those are my innards!

Y/N: (eye twitching) That's a lie... it's not true... I'm not a girl!

After she threw the tiger into wall, she walked backwards to her bed and laid down on her back she wished for it to be a nightmare.

Y/N: Oh god, this is a dream isn't it? Please let this be a nightmare.

Tiger: Wanna go back to sleep? Then let me help. I, eviserated tiger, will do my stuff!

As the stuffed tiger climbed on top of the bed, then jumped up and drop kicked Y/N in the face, knocking her out.

Y/N gasped as he woke up while panting in the morning.

Y/N: Oh crap. I just had the strangest dream.

Y/N looks at his stuffed animal which was still on his desk, he then checked underneath his pants to see his crotch is still here.

Y/N: (sighs) Thank god it was a dream. I was starting to get scared when I thought it was real at first.

Little did he know or believe, he was stilling wearing the blue bracelet which he didn't notice as his new crazy adventure was only beginning. 

Prologue ended. 

Sorry if it was short and all, my partner and I tried our best and we hope we'd live up to your expectations soon in the following chapters of this story.

Let me know what you guys think at the comments below, peace out!