Ask for the name of a romance novel

It took place in ancient times, and it wasn't considered transmigration. It was about the female lead. In her previous life, she was a very beautiful woman. She fell in love with a man, but that man, for various reasons,(I can't remember the exact reason) He gave her to the king of a country, and then she died. After she died, she passed through the Mengpo Bridge and drank the Mengpo Soup. She didn't lose her memories of her previous life. She was transferred to this life. Her name was Waning Moon. She seemed to be the daughter of the Prime Minister, but she lived a low-key life just to not repeat the mistakes of her previous life. She was even a monster in the eyes of others. She never paid attention to her image, but she was still very beautiful. She had a younger sister who was extremely beautiful. She was called into the palace to be a concubine. She didn't know why she entered the palace as a maid. At first, she was unknown. Later, for some reason, a prince and the emperor began to pay attention to her. Then... I remember that there was a part where she became a military slave. It was originally for the soldiers to vent their desires, but the king saw that she was immediately teased by those soldiers and couldn't take it anymore, so he let her out. Then, he had sex with her. The next morning, he even lost his temper because she wasn't a virgin and even slapped her several times...
My memory is blurry... That's all I remember... Dear friends, please help me out. O(headquarter_headquarter)O Thank you...

Answer 1

An example of a romance novel's name is as follows:
'The Reborn Concubine's Daughter Is Poisonous'