Yes, I recommend you to watch " Shu Not Accompanying You ". The protagonist, Miss Jiu, was also a weak, incompetent, timid, and timid concubine's daughter at the beginning. However, she was later used to ruin the Crown Prince's wedding and died tragically under the Crown Prince's palm. After her rebirth, she replaced her and began to fight against her mother, her aunt, and her sister in the Residence of Yun. She displayed her methods in the high walls of the courtyard, playing tricks, fighting for power, and became the focus of everyone's attention. I hope you like my recommendation.π