After Being Pretended to Be the Eldest Princess of the Demon World by a Fox Demon, I Went Crazy.

I am originally the daughter of the Demon Lord, the eldest princess of the Demon Realm. Because my six brothers loved the fox demon, they asked her to assume my identity. I was afraid that my six older brothers would get angry, so I didn't dare to speak out. However, the fox demon dug out the magic elixir and sent me to the hell of the demon world. If I live a new life, I will make them pay with their blood!