She was once the emperor's childhood sweetheart. She was granted the title of concubine upon entering the palace and her love for her was unquestionable. However, because the emperor sacrificed her family for the sake of imperial power, she was thrown into the cold palace and watched helplessly as her family members died tragically. Infatuated and wrongly paid, her heart was ashen, her love faded away, and she transformed into Shura. She sharpened her mind in the cold palace, planned step by step, and took advantage of revenge. As she grew up, she saw the nature of imperial power. In the end, the emperor regretted it, and she became an existence that no one could match in the deep palace.