Gold Turned Black ~ Alastor x Reader

(Y/n) you, an angel with the purest heart.
Already dead? Yes.
Kicked out of heaven with the possibility of no return? Yes again.
A fallen angel who's dreams were crushed within seconds, their heart shattered and trust broken, falling from heaven you felt your heart turn dark that day.
Some would even say it change from the shiniest and purest of hearts, from the beauty of gold to the dark, dark and black abyss of what the world calls a shattered soul.
Everyone you meet in the underworld you seemed to hate until you came across the deadliest of them all, Alastor.