The Lan family’s twin daughters were born with one white-haired and one black-haired. The elder sister was taken up the mountain by a Taoist nun as a child to cultivate. Skilled in both medicine and poison, she is sharp-tongued and cold-hearted. The younger sister married into the Prince of War’s household as his consort, where she is weak and long-suffering, enduring one humiliation after another. When the family is suddenly wiped out, all five brothers die and their parents are murdered, leaving only the sisters alive. The elder sister descends the mountain and discovers that her younger sister is being suppressed by a secondary consort and bullied by a princess. She is also caught up in Prince Jing’s plot to seize power. The sisters join forces to turn the tables: one uses poison to anticipate life and death, while the other takes advantage of the situation to lay her plans and stage a comeback. They uncover the mastermind behind it all and reveal the truth about the twins’ curse. In the end, the younger sister wins the prince’s exclusive devotion, while the elder sister cuts ties with past grudges and roams the world with her cat.
