Of Angels And Overlords (gender neutral reader x Vox

Hell has overlords, but what does heaven have? they didn't have an overlord equivalent for the longest time....until now.
y/n l/n, has the ability to influence heavens angels with their music and power over sound waves, but they can also influence humans, their sound waves are powerful enough to drive humans away from sin, since their arrival, heavens angel population has boosted, but an odd thing happens when a soul they influenced dies. they seem to be in charge of protecting that soul from falling, earning them the title as heavens very first Soul Keeper, the equivalent to hells overlords. They are a part of the court room that Lucifer arranged, after finding out about the exterminations they rebel and are given two options. Sera tells them that they can become a fallen angel, or they have to be an exterminator, they were going to choose being an exterminator, but hated the idea of causing suffering, so they made up a third option and did that