The wronged stepdaughter of the period novel quits

Disclaimer: not my story and i'm just posting
　　On the return journey during the Spring Festival travel rush, Su Haitang woke up on the high-speed train and found herself transformed into the cannon fodder female supporting role in a historical rebirth novel .Her biological mother died when she was three years old. Her biological father was urgently recalled to a mission by the army on the night he married his stepmother and never came back. In order to get her biological father's pension, her stepmother took her to marry the father of the heroine in the book. From then on, she became a poor little girl who lived under the care of others and was unloved. She served as the control group for the heroine in the book.　　As stepdaughter--
　The heroine has the support of her father and the protection of her brother. She has been well-fed and well-dressed since she was a child and has done everything she can to do any job. Relying on the memories of her previous life, she was admitted to university, assigned to the envied Agricultural Bureau, and married to a nationally renowned entrepreneur. She has been smooth sailing, promoted steadily, and has a glorious life.On the other hand, the original owner had no one to love him, he was hungry and cold, and at a young age he not only had to do all the work at home, but also had to work in the fields to earn work points. He suffered from childhood to adulthood:She was admitted to university through hard work, but her admission letter was sold by her stepmother. Half of the money was used to subsidize the family, and the other half was given to the heroine for college.She went to the city to be a nanny, but was bullied before she could finish her job. She was forced to marry a fool husband, and the heroine's brother got a formal job in the city.