When a framed royal physician flees for her life, she finds refuge with a mysterious woman in a secluded valley—a princess the world believes to be dead. Amidst the tranquility of the mountains, a bond woven by fate transforms from mistrust to reliance, sparking a forbidden love under the moonlight. Their love will challenge dark forces in the imperial court, uncover a treacherous conspiracy, and rewrite history as two women fight for a shared destiny and throne.