Recently, most of humanity was destroyed by a meteorite, but you were one of the few survivors.

You were walking through the streets, looking for something to eat, until you heard a noise nearby "Ugh.." They were noises of pain, was there anyone else there? Carefully, you approached the alley where you heard the noises, until you saw a supernatural being, it was a young boy with the appearance and wings of an angel injured, something extremely rare