Puella Magi: Tragedy (COMPLETED)

Note: The world is inspired by Puella Magi world but I put my own storyline and twist in it, these OC's I made are my OC's, please don't steal this story and pretend it was yours, you can get inspired by it but make sure to credit me and don't get too heavily inspired that you only change the characters, thank you for reading this, have a nice day.

Sinopsis
The story is about a woman named Nadya who one day was visited by a strange creature named Adami, Adami sees potential in her, and offer her a deal, she will grant her wish and she could work for her as a witch, Nadya gave her a condition, Nadya wants Adami to make her be able to change into a completely different person when she's a witch and when she's in disguise, Adami agrees and the deal was formed.

Slowly she realizes that her negative emotions are starting to corrupt her power which makes her job a lot harder, but she keeps going and going, hiding her identity from everyone around her making them distrust her and leave her. How will her story unfold?