Can you recommend an ancient novel where the protagonist is a fat woman who transmigrated after being poisoned by her stepmother and became thin?

Keeley, a simple plain Jane, hits the jackpot. [No, she did not win the lottery!] At least that's what she thinks when she marries the most eligible bachelor in New York City: Aaron, a wealthy cold-hearted heartthrob and Tycoon. She wants to show the world that she deserves her position and bends over backward to fit into his world. One beautiful day, Aaron hands her a document asking her to sign. A divorce paper... "She's pregnant, and I need to take responsibility." That is the last thing that keeps on playing in her mind before she takes her last breath. Keeley dies, a 'hit and run'. [End of story. Not!] For some unexplainable reason, she wakes up as her younger self. A young high school girl, around the time when she first meets her cheating husband. Remembering her life with Aaron before she died, she makes a promise to herself that she will do everything in her power to avoid him at all costs. Will she be able to keep her promise when Aaron has his own plans as well, specifically for her? Or will she repeat history and fall for him once more... Why not journey with me and find out the truth behind their story. *Cover art by polkadottedscrunchie*

Qiao Mei transmigrated into a novel as a supporting character with the same name as her who lacked presence. This supporting character was a country bumpkin who couldn’t get married due to her obesity. According to the original script, this country girl Qiao Mei was a fatty spoiled by her grandfather. However, their relatives were all vicious and cruel people. Her grandfather had poor health, so once he died, the relatives would divide and swallow up his assets. Hence, her grandfather’s greatest wish was to marry Qiao Mei off. For this, even sacrificed and betrayed his good friend’s grandson, Xia Zhe. Grandpa got Xia Zhe drunk and had Qiao Mei forcibly take the strong and handsome Xia Zhe with her body which weighed more than two hundred pounds. Then, grandpa would catch them the next day and force Xia Zhe to marry Qiao Mei. However, that eventually caused the start of Qiao Mei’s unfortunate life. Also, in the original story, Qiao Mei took possession of Xia Zhe’s mysterious jade. But due to Qiao Mei’s stupidity, her cousin's sister had tricked Qiao Mei into giving her the jade, which resulted in the cousin’s family becoming rich. When Qiao Mei transmigrated here, it was during the awkward moment when she was making love to the man after making him drunk. She woke up groggily the next day and grandpa’s team had already appeared at the door. Qiao Mei was frightened. She didn’t want to proceed on the original path and marry a man who didn’t love her. And so, she lied and chased grandpa away. She also pushed the man out before forcing herself to look at her tanned and chubby reflection in the mirror! Alas, she cried at her ugly appearance… Like a sumo wrestler in large cloth underwear, even the plus-sized apparel shops didn’t have clothes in her size. And her face was the size of a pizza, a scorched pizza! Qiao Mei decided to reform her life! The first step, lose weight! The second step, clean up her room! She used to be particular about cleanliness, and although her current house had a huge courtyard, she could only describe it as messy! The third step was to hold onto the jade tightly so her greedy cousin wouldn’t stand a chance! Only, wasn’t the tall and handsome Xia Zhe supposed to hate her according to the original story? Why was he being nicer and nicer to her?

She is a cultivator from another world. She is proficient in refining artifacts, improving elixirs, talisman arrays, medical skills, and even fortune-telling. Due to several unexpected tribulations, her reputation was tarnished and she became the second daughter of the Lu family who harbored ill intentions toward her future brother-in-law. What? She had just been reborn, and she was going to marry a ferocious man who was known as the living Lord of Hell and the second young master of the Mu family whose legs were disabled?! Fine! Since that man was so magnificent and fit her taste, she would marry him anyway! But what happened to his legs being inconvenient? Who was the man who would pounce on her from time to time at night and pamper her until she felt sore all over?! Who was the one that first spread the rumors? Would they dare to come forward? They would most likely be crippled if they did not kill him! [In the modern world, the male and the female are both strong. From evil torturing to extensive face slapping, this story is filled with endless thrills. There are mythical dimensions, cute babies and even (not scary) supernatural occurrences. Both leads are immaculate and pure while the male lead is addicted to doting on his wife!

The headlines bring shocking and mind-boggling news. "Ling Sheng boarded Movie King Huo Ci's sports car, and the duo are suspected to be dating!" "Huo Ci and Ling Sheng entered and left the same condominium. They are confirmed to be staying together." "Screw off, these blind bastards. He's my biological father!" Third Master Jun, likewise, reacts with a similar reaction. He spits. "Whoever posted these will be blacklisted, never to be seen again in the media industry! I shall see who else has the guts to spread rumors about my wife and father-in-law." Third Master Jun is the most affluent man on earth and this places him at the apex of the world order. However, he is troubled by the fact that the Movie King Huo Ci, despite only being a few years older than him, is his father-in-law.

Mo Ran, an extremely talented and gorgeous Army doctor, found herself transmigrated into the body of a 130 kilos unfavoured young daughter of Qin family, Qin Yan. Originally with powerful medical and martial arts skills, Mo Ran faced great difficulty dealing with heavy body of Qin Yan. She vowed to loose weight and restore her original appearance. No matter how difficult it was, she was determined. Her vicious mother and white lotus sister stood shocked seeing the changes in Qin Yan but the faceslapping had just begun. Her plans were perfect but a little bun suddenly intervened.. "I like Sister Yan. Dad, I want to live with Sister Yan." The CEO of Xi Corporation, the richest business magnate in the country said, "We both Father and son like you. Come home with us." FL : Strong and determined. ML : Crafty and shrewd.

Chu Ning transmigrated into a novel as a fake young lady who was switched at birth. The real young lady, Ye Ting, was supposedly in Chu Ning’s original poor family, and was forced to drop out of school to work and raise Chu Ning’s seven brothers. In the original story, once the real young lady was reclaimed by the Ye family, the fake young lady’s life fell apart. She started going against the real young lady without knowing that the real young lady was the female lead. The latter even had seven brothers to support her, and she eventually made a comeback with her overwhelming advantage. Meanwhile, the fake young lady had resorted to every scheme she could, even faking suicide, only to end up tragically with everyone hating on her. Chu Ning transmigrated over at the crucial time when the real young lady just returned, and the fake young lady was fighting to stay at the Ye family by threatening suicide. Outside the door, her foster mother spoke in an icy tone, “I don’t care. She has to return to the slums. I get annoyed whenever I look at her now. Why does she get to live a lavish life while my biological daughter had to suffer in the slums? She even had to stop schooling to work and raise her brothers!” Her foster father said, “Still, we’ve raised her all her life, and our family can afford to feed another. Now that she’s threatening suicide, let’s just let her stay.” Chu Ning rushed out of the ward. “I’ll leave! I’ll discharge today and go back at once. I’m not a member of the Ye family, so I have no reason to insist on staying.” Her foster mother was surprised, and her foster father was puzzled. Chu Ning ignored them. After knowing how the original plot went, she set three goals for herself. One, to stay away from the female lead! Two, to stay away from the male lead! Three, to live a good life in the slums! Yet, to her surprise, after being successfully abandoned by the Ye family, her biological brothers all became tycoons in their respective industries. Chu Ning effortlessly made a comeback all of a sudden! Even the male lead who had called off their marriage now forced her into a corner, saying, “Ningning, be mine!”