Poisonous Miracle Doctor of Blackness: Dark Serpent

Lu Wula was once a Divine Doctor, but after dying she ends up in the body of Xi Qixi, the useless daughter of the prime minister of the Zephyr Empire. She now has to fight her stepsister and stepmother, while acting like a filial daughter, but it starts bothering her, so she cross-dresses and sets out on a journey to make a name for herself as a miraculous healer clad in black, "Doctor of Blackness", but unknowingly, she attracts the attention of the prince regent, Ju Vaqing and so, she has to deal with his persistent trying to poach her to be one of his allies. But Ju Vaqing is a persistent one, so Lu Wula finally accepts his offer, and her journey as a poison master clad in blue begins. She makes a new name for herself and that one is "Dark Serpent", a name that will become so widely known, that it will strike fear into the hearts of people whenever they hear it.