It's Hard to Be a Proper Lady (Reborn)

In her previous life, Pei Ruyue was willful and arrogant. Her marriage prospects were poor, and although she eventually married a top-scoring scholar, her maid and husband conspired against her, leaving her to die a miserable death. Given another life, she decides to turn over a new leaf and be a proper young lady from a distinguished family, obey her parents' wishes, and marry a suitable man of equal standing. Everyone says the Heir of Prince Qing is a spoiled royal brat who spends his days cockfighting and chasing women, and that he especially dislikes the airs of young ladies from prominent families. Lately, the heir has been troubled by the prospect of finding a wife. He hears that the eldest daughter of the Duke of Anguo's household has a bad reputation, and decides she is the one. [A heroine determined to be a proper lady but prone to flying off the handle x a male lead who pretends to be a wastrel but is actually scheming.] One-on-one romance, happy ending. Theme: