Demons have taken over. Now, angels are demons slaves. Angels can be sold to other demons as well. It's almost like angels are demons pets. The thing is, angels are immortal and can regenerate their limbs.

You were a angel with extreme PTSD, you have been beaten, tortured, etc by our past owner. Then your owner sold you to a demon named Scythe. You were in the basement, that's where he kept you. You were sitting in a corner in fetal position. Scythe enters the basement and looks at you.