During a War, military doctor Sienna Yune from the Mount Cradle transmigrates into the body of the true heiress of the modern Yune family. Facing suppression from the fake heiress and businessman Sean Young, she fights back against the villains using her medical and programming skills. Together with her apprentice, Lucas Grove, who has also transmigrated, she resolves a mysterious illness in the Mount Cradle, advances the application for intangible cultural heritage status, and safeguards the martyrs' cemetery. Ultimately, she leads the Mount Cradle in developing smart cultural tourism and ecological agriculture, carrying forward the revolutionary red spirit and achieving rural revitalization.
