An empress fell into a trap and became and divorced, and was cut off with her family. At the last minute of life, her sister Lizzy regretted "only if I were the empress" she was sure not to love the emperor. Everyone will be happy without dying. When I opened my eyes, she returned in time before she became the Empress. In order to prevent a recurrence of the tragedy of past life, Lizzie makes a decisive decision: "I will become the queen instead of you." Can Lizzy, who became an empress, live a happy life?