Doctor and Poison Twins

Once she woke up, the genius doctor became the illegitimate daughter of the largest family in the world. Not only that, after his father passed away, he became a thorn in the side of his relatives. Kill the servants, join a cult, destroy the family, take the world down, disguise herself as a man, and the evil lord dotes on her to the core. What, there's no point in doing this? The Evil Lord smiled charmingly: I will conquer the world and make you a dowry!