I Became Lin Daiyu in the Red Chamber, Then Went on a Killing Spree After Returning to the Marquis's Estate

Synopsis: She was Shen Xinlan, the legitimate daughter of the Earl's mansion in the capital, and its only legitimate daughter. Then, on a snowy day, her father suddenly brought home a woman and told her it was her younger sister, asking her to look after her. Before long, he brought home another woman, who was ushered into the mansion as her stepmother. In just two months, Shen Xinlan went from being the pampered young lady of the mansion to a prisoner there, and it was all because of them... But at the beginning of fate, an unexpected opportunity turns her into Lin Daiyu. Where will the road ahead take her? Is she Lin Daiyu, or Shen Xinlan...