My next-door neighbor {Nagisa x Reader} (UNFISHED)

CHATPER 1: New neighbors

Demon experiment AU
TW: Abuse, drugs, Murrder, violence
(Ur mom's name is Angelica)

You were an experiment made by your mother. Ever since you were 5, she tested drugs on you and would beat you when you didn't listen... today you were moving because the source for her "Experiments" moved to another place.... where you moved just so happened to be nagisa's apartment building. You were already brought inside as you saw Nagisa enter his apartment... your demon tail wagged slightly as with was your first time seeing a human, and your mother slapped you sending you to the floor. You looked up at her, your demon tail softly sliding between your legs
"Listen here, girl, just because we moved doesnt mean-"
Before she could finish Nagisa and His mother knocked on the door... you ran to the corner and hid like you always did, hidden well until your mother called you... your mother opened the door, her hand still hurting from the slap as she smiled at Nagisa and his mother
"Hello, i just moved in, I'm Angelica nice to meet you too" Angelica spoke kinda as Nagisa and His mother introduced themselves nagisas mother was speaking to Angelica and Nagisa walked in with the orders of his mother and he was looking around and noticed a glass bottle with the name of 'Y/N' he stared at the bottle confused "Y/N" He spoke the name rolling off the tip of his tongue and you softly peeked out and he saw you so you quickly ran off without him speaking...
"Who- No... what was that?" He mumbled to himself, running around the corner and bumping into angelica."O-Oh! Sorry, Mis. Angelica, " Nagisa said, bowing slightly.... you watched from your hiding place as your mother scolded the boy for running and then sent him and his mother back to their apartment.... than your mother called out to you and you hurriedly ran over to her as you were about to speak she grabbed you by the hair and tossed you into the wall grabbing some rope and tying you legs down along with your demon tail and tying your arms above your head and she dug through some glass vials and took out a light blue one and she smiled taking some of the liquid into a syrgine and she walked to you putting it in your arm and slowly injected it into your arm... for the first few seconds, you felt fine... then suddenly your whole arm felt like it was on fire... you squirmed against the ropes, a few tears falling from your eyes
"Gah!- Mother, it burns! It hurts- a lot!"
You yelled out as your mother pulled out the needle, still half filled, and put a bandaid on the small wound
"Probably because it's acid," your mother spoke, walking to your other side and injecting the rest of the acid into your other arm because walking away... it hurt... a lot... your hole body was hurting like crazy. It felt like you were going to die.