Today I'm Still Trying to Make My Father-in-Law Fall for Me

In her past life, when her elder sister became pregnant, Gu Hua was sent to her brother-in-law as a concubine. Little did she know that the day her sister gave birth would be the day she lost her life. Reborn, Gu Hua plots every step: first she charms the powerful father of her sister's husband until he's completely wrapped around her finger, marries into the Duke's estate as its mistress, then reclaims her rightful place as the legitimate daughter and unleashes havoc—making these heartless wretches cry for their parents!