She was loved by everyone because of her beauty. What was this novel?

There was a novel about a female secret agent who traveled to ancient times and became an ugly woman. There was also a biased mother who always ostracized her and a younger sister who was self-reliant on her beauty. The younger sister's personality was extreme and eccentric. She occupied the young master of the village who had once been engaged to her sister, but the young master still had his heart on the ugly woman. Later, the ugly woman gradually changed and became involved with the savage Big Brother X, who was rumored to be hated by the villagers in the mountains... What's the name of this novel?
Additional question:
I haven't finished reading this novel, but I feel that it has nothing to do with cultivation or fantasy. Moreover, the female protagonist isn't from an imperial family. She's just from a half-way family in the village. Her father died, and her elder sister eloped with her lover...

Answer 1

I recommend the book "Hibiscus Make-up" to you. It's about the female agent, Mu Shishi, who accidentally drank poisoned wine and traveled to ancient times to become the ugliest woman that everyone feared. She used modern thinking to fight against the ancient aristocrats. It was endless fun! There was also a plot where she always ostracized her biased mother and her beautiful sister. I hope you like my recommendation. Muah ~