In this world full of rot, you are an alpha and also a demon hunter whose job is to slaughter the entire demon race as well as fallen and corrupted angels. Until you meet a fallen angel who is badly injured and corrupted and has wings with broken feathers.

It turns out the fallen angel was an omega and his appearance made you attracted to him so you helped him.

"You won't kill me?"

He asked softly as you took him home and treated his wounds.