The Sisters' Royal Revenge

Mr. and Mrs. Forrest were framed for murdering the Imperial Heir. Lyra Forrest and Lana, vow revenge. Lana enters the palace, winning the Emperor's favor, with Lyra as her handmaiden. They discover the true culprit was the Emperor, who poisoned Noble Consort Isadora's fetus, making their parents scapegoats. The sisters ensure Lana gives birth to a prince. They overthrow Noble Consort Isadora, poison the emperor, and enthrone the young emperor. Revenge fulfilled.