Miaoyu in Dream of the Red Chamber

Neither of her previous two lives ended with a peaceful old age. Now she's transmigrated into the role of a sacrificial character, and Qian Weiwei suspects Heaven itself has it in for her. This time, she's transmigrated into the role of Miaoyu from Dream of the Red Chamber. She decides to do her best to live as long as possible, and if she can achieve immortality, all the better. As for the male lead, what's that?