Fight or Flight [BNHA x reader]

I'm a guardian not a killer

You pushed yourself off the rocky ground with an annoyed huff and looked around, you were surrounded by about 11 men all brandishing a weapon or a weaponized physical quirk.

"Aww look at the little wannabe hero. Are you going to go home and cry to your daddy about how scary us big bad villains are?" A man with an axe teased, his troop closing in on you. You reached in your holster and gripped the hilt of your knife. You were going to get out of here and find out what in the hell is going on, these people are threatening your family and friends and they'll pay for it.

"Not in the slightest. Now what are you here for?" You stared the supposed leader of this squad down and he just kept that mocking smirk on his green skinned face.

"Oh you think you're some big stuff because you have a knife. I don't know if you understand, all of our weapons are bigger." He raised his axe, pointing it at you threateningly.

"You have about 5 seconds to tell me what you are doing here before you bleed out." You spun the blade between your fingers methodically, a rhythm you've always had. you were getting impatient, this was an annoyance. Your nerves were thrumming in a way never before.

"Ohh how scary. Bleed out from what, you're the one whose going to die here?" You didn't have time for this, you needed to find Aizawa, needed to make sure he's ok fighting alone against the ones who were definitely strong. You knew he wasn't going to talk so without wasting a second more, the knife that was once in your grasp was now embedded in his throat. His eyes went wide and he clutched at his throat, gurgling. Everyone turned to look at him then back at you before charging.

"You little brat! We'll kill you for that."

"Have fun with that." You took a deep breath and shot into the air, focusing on manipulating your quirk to form a bow of sorts, you pulled the drawstring back and let an arrow pierce through the forehead of one of the villains, he went down and the light disappeared. Your focus was so much on your quirk someone managed to hit you with some metal shrapnel, probably from a quirk but it left nothing but a scratch. You dropped right over one of the men, your legs wrapping around his neck and shoulders your thighs gripping him hard as you threw yourself back and twisted, letting his neck crack and sending him down limp.

"Before I kill the rest of you, who want's to tell me what you are doing here?" You took a step forward and the villains did as well, cocky smiles fitting on their features.

"We're going to kill All Might."

"You think you can kill All Might?" you scoffed and grabbed your now bloody knife, wiping it off on your skirt.

"No but our boss can which means your little teacher is good as dead now." That was it, you felt anger, fear, hate filling every bit of your body and your hands were glowing, a wall of needles formed behind you before embedding into your opponents. They were weaker than most of your classmates.

"Pathetic fuckers." You shot off at your top speed flying up as high as you could to get a good vantage point to find Aizawa. Your classmates should have escaped or transported like you which would leave Aizawa alone with someone who they believe to be capable of defeating All Might. The lenses of your mask zoomed into each scene, you saw Bakugou and Kirishima easily taking out the villains, Todoroki had frozen an entire area completely disabling everyone, Kaminari Jiro and Yaoyorozu were fighting together fine, you finally saw Aizawa. You locked onto where he was and your heart dropped when a giant creature slammed him into the ground. When you got closer you could hear as he snapped Aizawa's arm, it looked like it was as easy as ripping a piece of paper. Your surrogate father groaned out loudly as he was slammed repeatedly into the ground, his face bleeding more and more each time you could see it.