No regrets no mercy eren x reader X levi

Mysterious girl

"Eren!!! Be careful that person could be dangerous!!" Mikasa yells( she saw the mysterious you, but not your face)
"Mikasa she tried to help!!" I yell angerly I don't know why I got angry even though I don't know that girl.
"Eren!!" The rest of my friends land in the wall
" did you see that person!!" Christa yells
"Yeah" I say
" did you get a good look of that person" Jean says
"Yeah" I say, I feel heat rise to my cheeks
"It's a girl right!!" Reiner blurts out
" yeah " was all I could say
" don't tell me, little Eren here finally found love??" Jean says
"Shut up horse face!!" I yell
" Jean you shouldn't assume such idiotic thing" mikasa says angrily
"Who was that any ways" armin pipes up
"I don't know but I remember that emblem on her cloak" I say 
-flash back
Where is mikasa?? I say in my head
"I can take care of myself I don't need her" I say and walk home, but I feel three men pull me to an ally way
"Let go of me you basterds!!" I yell
"We've go a angry one" they say chuckling
" let me go!! You cowards" I yell
"He won't sell for much but we can take out his innerds and sell them for a decent price"
One guys says "stop it!" The same guys says
"I won't stop fighting!!"I yell trying to get out of there grasps
"Tch people like you make me sick" an ominous voice says
" who the hell do you think you are" one of the guys says
" yeah!! Show yourself" another one of those guys says
"Well remember, be carful what you wish for" the ominous person says
A flash of a dark purple zips past us
Then lands in front of us kneeling, that person stands up, her hood covering her face a smirk plastered on her plump pink lips, I blush but look away
"Hey kid" she says In a monotone voice
"Y-yeah" i stutter
"Count to five and close your eyes and cover your ears, can you do that for me please" she says in a more sweet voice
"I-ok " I stutter to be honest I know that in the position I was in I would need help and seeing how I'm out numbered I listened, plus there was something about her voice they made me feel safe.

Your p.o.v
"One" the little boy says
I throw I knife I hide in my belt by twirling then shooting my hooks somewhere else just in case they try something, it strikes one of the men in the heart  he collapses, I land behind the two men and they don't even notice
"Two" the boy says
You twist one of the guys necks causing him to fall because you broke his neck, the other guy spills out a gun and shoots at me, I do back flips and dodge everyone then he runs out of bullets
"Three" I forgot the kids still there I kinda forgot because I was having fun but I them get back into my fighting stance. " rookie mistake" I say smirking
"Please let me go il leave him, don't hurt me I'm the one who feeds you and your families!!!" The merchant says ( he just confessed that he's a merchant or shop owner) he steps away from the boy
"F-four"
"Tch what family?" You say bitterly then you get your blades from you 3dm gear and cut his head clean off then you push the body away, then you run and drag the body's somewhere else,
"FIVE!" He says happily
Erens p.o.v
"Um excuse me" I say
Did she leave already? Wait am I alone!!! What if those basterds come back!! I think in my mind
"Boo" the girl says and I jump and yell
"Why'd you do that" I ask a bit angry but mostly embarrassed
"Tch calm down, hot head" she says smirking
"What's your name?" I ask out of nowhere
"That's not important,any ways get home and don't do anything stupid" she says and starts to walk away
"W-wait!! You can't just leave like that!!" I yell
"There's nothing more to say"she says as she uses some type of machine to fly away. As she flys away I catch a glimps of her cloaks emblem
"Woah! Cool she's probably apart of the scouts or something!! But the scouts doesn't have that emblem.hmmmm" I wonder
"What are you staring at go home already" she says stoically, I was so lost in my thoughts I didn't realize she was behind me
"B-but I just wanted to say thank you, b-but I'm sorry if I was a burden" i stuttered out
"Tch" she said and began to walk to me, she took of her hood and said
" never say sorry, it's a sign of weakness"
and shot her hooks and left without saying another word. I looked down at the floor and I saw a black rose with a black silk ribbon tied on it.
"Wow! It's so nice, she probably dropped it" I say happily
"She's so cool" i say while begins to walk home, I entered my house and mom and mikasa looked worried
"Where were you young man, it's dark outside already!!" Mom yells
"Yeah you could've got hurt!" Mikasa says
"Calm down, I was in trouble and almost got killed but a nice girl helped me and I found this after she left " I say annoyedly, showing then the rose. My mom rips it out of my hand and yells at me
"WHERE DID YOU GET THIS!! MIKASA CALL FOR HANNES!! EREN GO STRAIT TO YOUR ROOM NOW!!
"WHAT AREYOU GOING TO DO?!!" I yell
" GO TO YOUR ROOM EREN" she yells at me and I see fear in her eyes, mikasa ran and came back with hannes
"What's wrong Carla??" Hannes says
"mikasa go to your room please" mom says and mikasa obeys, but I don't I hide behind a large container we use to sore food
"HANNES TOU HAVE TO ALERT EVERYONE!! SHES HERE AND SHES DANGEROUS!!" Mom yells
"The black rose?!" hannes yells
" yes look!" She showed him the rose
"Carla this isent enough evidence" hannes says a bit of fear in his voice
"Eren said he saw her emblem on her cloak!!" Mom yells but quieter
"Il alert everyone, we'll make her pay"
"NOO !!!" I yell, and run out of my room
" EREN!!"
" you can't take her to jail!! She helped me!!she killed those men-" hannes cut in and said, "dammit she killed people already, don't worry Carla she'll die for putting your son and our entire city in danger " hannes yells before sprinting to go tell the rest of the guards.
" WAIT NO!!" I yell
"EREN YOU DONT KNOW WHO SHE IS SHES A MURDERER PLEASE DROP THIS TOPIC AND GO TO BED NOW!!" She yells at me
"Never!! THAT GIRL WAS NICE TO ME AND I WONT LET THEM HURT HER!! I OWE HER!!" I YELL
"EREN you don't even know who she is! She could've hurt you" mikasa says
" shut up mikasa she helped me!! Stop judging people like you always do!" I yell at her, she seems a bit taken back but I don't care then I feel a stinging sensation on my cheek and I see that my mom slapped me.
"EREN this conversation is over your grounded for the next 3 days you will not go outside to play with your friends you will help clean the house!"
" BUT MOM!!" I whine
"Keep it up and il make it one week!"
"Fine" I say
I feel so defeated what will happen to that other girl she was so nice to me..... I hope she can escape them, what am I saying she made 3 grown men disappear  I know she can escape them, but I still wonder where did she take them? Did she scare them off?