The Most Vicious Heir's Consort

She was the leader of the Poison Doctor Sect in the twenty-third century. A single silver needle could snatch a life from the King of Hell, but she had no interest in saving people. She preferred to torment them. One day, she transmigrates into the body of a mentally disabled illegitimate daughter in the Marquis's household, where everyone bullies her. Her stepmother and her legitimate and illegitimate sisters all make her life miserable. * When she becomes the girl, her eyes gleam and a cold smile curls her lips. You worthless fools dare to court death? Then line up and come to me one by one so I can teach you a lesson. * But as she takes care of the scoundrels, she discovers that she isn't the marquis's illegitimate daughter at all. She's a commandery princess. Her biological mother's place was stolen by her stepmother, who not only took her mother's position but also wants to take her dowry. She hears that her mother left her a huge dowry, including a Dragon King Token that can summon the heroes of the martial world. If it belongs to her, no one else can touch it. Leave it all to me. *