The Eldest Daughter is Delicate and Pretty, how can she be a Malicious Supporting Character

In the capital city of Shangjing, everyone knows that the legitimate daughter of the Prime Minister’s mansion, known for her gentle and obedient demeanor, is intelligent and elegant, making her a model among noble ladies in the capital. Even the Empress Dowager, who has long resided in the palace, once personally praised this noble lady for her beauty and intelligence, considering her a paragon of elegance for noble daughters. However, only Pei Lingyi knows that all of this is just a perfect role she has played. For over a decade, she has earned countless accolades for herself, all in preparation for the day she would take control of the Fengyi Palace and become the most respected woman in...