The Ghost King’s Headstrong, Poisonous Wife

She was a dark assassin who moved through the shadows of the 21st century. After flawlessly completing a mission, she drank with her comrades and inexplicably transmigrated. She became the legitimate eldest daughter of a general's household in the Great Li Empire, whose mother had died young and whose father didn't love her. All she had was an older brother who doted on and protected her, along with two loyal young maids trained by her brother. After becoming the Prince of Jin's consort, she was always running off to see the Crown Prince, and in the end was cruelly beaten to death by the Seventh Princess and a scheming woman. When she became her, the first thing she did was beat up the culprit who had killed her! The Seventh Princess? Sorry, I'm your Ninth Imperial Aunt. If you dare hit me, I'll hit you right back!