At first I thought she was killed? But the husband didn’t seem to hurt her? And instead took care of her? So why is ayame a monster? What happened to her?
Never mind, looking at the comments it seems her wound was an accident. I thought when we first saw a snippet of her backstory though it seemed more purposeful
Have you ever heard of the idea that Christianity permiates through all western stories?
Well the same is true for Japanese stories except it's Shinto that permiating. Shinto is largely about the Soul and how you want to keep it clean, if a soul were to become foul the creature would become a monster one way or another (usually a malevolent Yokai or lost Spirit)
She's a monster because she's a "monster"