Help me find this anime from a specific backstory/flashback!

I'm looking for an anime where this exact sequence happens as a side character's backstory (she is NOT the main character):

Character: A demon/oni girl with horns and pink hair (or a similar shade).

The setup: As a child, she was taken in and adopted by a church/orphanage. She lived there for a while alongside other girls and the caretakers who protected her.

The conflict: The local villagers eventually discover that she is a demon and storm/attack the church.

The tragedy: The other girls and church members help her escape, but as she is fleeing, she turns back and sees the villagers brutally beating her protectors and hanging/executing them.

The outcome: Enraged and traumatized by seeing them hanged/beaten, she loses control of her powers and ends up destroying the entire village.

Does anyone recognize this scene or character? Any help is appreciated!