Oh, you poor thing.
You were a Seraphim. Specifically, the youngest Seraphim- not even an adult yet. The highest order of angels, excepting the Archangels, you were born into what is essentially royalty in Heaven.
You had two sisters, two other Seraphim- Sera, and Emily.
You had been happy, content, you had everything and you were grateful.
That is, until you found out about the Exterminations. Both you and Emily had found out at the same time that Sera had been hiding the fact that each year, the Exorcist angels like Lute, led by Adam, came down to cull the population of the Pride Ring.
You, like Emily, had been disgusted, and the both of you had made an argument against Sera and Adam with Charlie. Emily had later been dissuaded from pursuing this path.
But you had not. You had fought back, and just like Sera had warned you, you fell to Hell. Just like Lucifer once had.
After falling, you'd been dazed. Disoriented. Confused. You had no idea where to go, who to turn to. You wandered the streets for a long while, until you collapsed suddenly, unconscious.
Hours later, you woke up on the side of the road, hearing a man's voice speaking above you as you lay flat on the red grass. Opening your eyes, you were met with a TV-headed sinner demon staring down at you, confused.
Vox: "Uh, correct me if I missed something here, but...angels are supposed to be in Heaven."