I recommend a novel about a modern female protagonist who was reborn from time travel and was locked up in the dungeon by her lover in order to marry the Eldest Princess. The master of the protagonist was also very powerful. He knew about her experience and saved her.

The number changed and she was reborn into the female protagonist's biological sister. She had a black cat and was reborn. She married the male protagonist. The male protagonist seemed to be called King Yan. The female protagonist seemed to be surnamed Su. The ending was that the female protagonist was the emperor's biological daughter. The male protagonist became the emperor and the demon lord liked the female protagonist.

Answer 1

" I don't think it'll meet your needs, but I'll try my best to recommend a novel that's most relevant to your description."" Anti-Time Travel: The Princess Transmigrases to the Modern World " is an ancient romance novel written by the author, Fangjieyou. The general plot of this novel is as follows:

She was the princess of a fallen country, and she had escaped from that calamity with her loved ones. They were separated by yin and yang. Facing the enemy leader who loved her deeply, she finally chose to jump off the cliff and commit suicide. However, she did not expect that she would transmigrate to the modern world and meet three men who had entanglements with her previous life. Who exactly was her lover in her previous life, and what kind of test would the God of Fate give this princess of a fallen country…The old red robe was new, and the old palace was beautiful. At that time, the flowers were blooming, and he was still there. I left my hometown and was reborn as a human being. Now I sing the song of yearning again. I don't know who is playing the sword and singing? Who was her 'him'?
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" The Reborn Female Guard of the Deposed Crown Prince " was an ancient romance novel written by the author, One Dream Returning to True. The general plot of this novel was:

After her rebirth, she still started as a servant girl, but her martial arts were peerless, she could predict the future, and she was also proficient in the language of beasts. How could she be willing to be mediocre? Since she was reborn, she should take a good look at what she had missed in her previous life that caused the heavens to not accept her. It turned out that she had missed the most important person to her. Help him counterattack and seize power. Behind every successful man is a good woman.
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" Reborn and Return: The Evil King's Favorite Wife Ascends to Heaven " was an ancient romance novel written by the author, Sister. The general plot of this novel was:

In her previous life, she was the most favored Third Miss of the General's Estate. Although she was the empress, she was only in name. In order to protect his family, he had to endure humiliation and live in secret. In the end, he ended up with his family exterminated. When everything returned to the starting point, she suddenly came to a realization. With one heart in hand, the world was mine! He learned from his master and received his inheritance. He schemed and planned. He dominated the court and galloped in the martial arts world. With a flip of his hand, he could create clouds and rain. He could do whatever he wanted and roam freely in the nine heavens.
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" The Storm of Time Travel Rising Again " was a fantasy romance novel written by the best author, Mo Mo. The general plot of this novel was:

The Crown Prince's fiancée, the child of the Nation Protecting General and the Prime Minister's daughter, had starved to death in the dungeon. After she had been abandoned and destroyed by her brother, she had finally turned into a demon god. Whether the Feather Transformation Continent existed or was destroyed was entirely in her hands. What exactly made such a cute person like her become like this…
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" A Life of Rebirth's Spoiled Child " was an ancient romance novel written by the author, Wu Meng Feixue. The general plot of this novel was:

In her previous life, she was muddle-headed when she was getting married and was unlucky enough to be assassinated. In the end, she was forced to jump off a cliff and commit suicide. Perhaps it was because of her unwillingness, but her soul drifted away. She actually saw her mother being heartbroken after her death and injured her body. She lay in bed all year round. Her father and three brothers were out meticulously planning and planning to avenge her. In the end, although they had avenged her, they had also paid a huge price. Her parents died with hatred, and her three brothers were injured and crippled. One death. She came with a monstrous hatred, vowing to avenge her family and protect their safety… But who could tell her what was going on? After entering the palace, she was given the title of princess for no reason, and she was even given a marriage… She entered the palace again, won the favor of the Emperor and Empress Dowager, and was even promoted from a princess to a princess…
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" The Reborn Daughter Becomes a Concubine " was an ancient romance novel written by the author, Qing Moran. The general plot of this novel was:

In her previous life, she was the legitimate daughter of the Left Prime Minister, who was famous throughout the capital. She was proficient in witchcraft and had married a prince of the royal family as a concubine to help her husband achieve his hegemony. However, she had been abandoned and died in a fire with hatred on the grounds that witchcraft had harmed the country and bewitched the world. In her rebirth, she was the daughter of the Right Prime Minister's concubine. She used witchcraft and power to stir up trouble in the court and the harem. She carefully planned and plotted just to destroy the dynasty that that person had built. She had no intention of provoking him, but she was destined to be in love. At the bridgehead of the marriage bridge, he put a peach blossom into her hairpin. His smile was gentle and unparalleled. She said,"I have a curse in my life. Anyone who comes near me will not have a good end." He laughed,"Since you wish so much, why not I overturn the heavens for you?"
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The book," The Queen's Rebirth Relying on the Space to Cultivate ", was written by the author, Meng Yaoyue. It was a Xianxia novel. The general plot of this novel was:

Shangguan Huayue was dead! She had died in the hands of her fiancé and sister, and for an incomplete secret treasure, she had even been eaten alive and her bones turned into ashes…
Shangguan Huayue was reborn! Possessing a five-year-old girl…and it even had a powerful and mysterious portable space!
In this life, she wanted revenge. She wanted to be strong! Relying on the portable space exchanged for death, she became more and more carefree on the path of cultivation…
In her previous life, she had been betrayed by her fiancé. In this life, she had sworn never to touch love again. However, when he appeared by her side, he could beat monsters and abuse scum outside, warm the bed and make tea at home, and he was also handsome. Could she still accept her own heart?
In her previous life, she had worked so hard for her clansmen. In this life, she swore to only be a carefree queen…
"Yue Yue, when will you let me go to your bed? Your husband was so impatient?"
"Get lost! Are you crazy?!"
In short, this was the history of a queen and her man's struggle to become immortals!
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" The Woman Who Transmigrated to Become a King " was an ancient romance novel written by You Xiaoai. The general plot of the novel was:

She traveled through time and space, became an unlucky girl, and got engaged to two men in a row. Her healthy fiancé, Jun, died for no reason before the marriage. Because of this, she was hunted down by the whole city. She met the current emperor by accident. Unexpectedly, only the current emperor had her safe and sound! She was the woman of the Heavenly Born King!
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" Rebirth: The Counterattack Princess Consort " was an ancient romance novel written by the author Wan Xia. The general plot of this novel was:

In her previous life, she had died on the night of Feng Xin's death. Ten years ago, she vowed to take revenge and never have anything to do with the royal family. He had thought that she would be able to predict things like a god in this world and play with them in the palm of her hand. However, he had appeared in her world and caught her off guard. Originally, he was a thorn in her side, and she was his treasure. Later on, she could no longer leave him, leaving him in the softest place in her heart. Let's see how they will unite and become proud of the world!
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" The Beauty of a Concubine's Daughter " was an ancient romance novel written by the author, Beauty of a Concubine. The general plot of this novel was:

In this life, she was proficient in martial arts and had achieved all the glory in her life, but she died under the scheme of her beloved boyfriend. Fate had given her another chance. She had transmigrated back to an unfavored concubine's daughter in her previous life. Her mother and sister had the heart of a snake. They had a sweet mouth but a bitter heart. Their methods were vicious and vicious. She opened her eyes and found herself in a mass grave. It was not easy for her to be reborn, so she decided to live again. In this life, he would not easily lower his head. Returning to the Imperial Residence, was it love or revenge? He said,"I'll definitely kill all the people you want to kill for you." She said,"I want to kill my enemy with my own hands. You're not allowed to interfere." He said,"No matter what you become, I will still love you." She only left behind tears of regret…