The Kingdom of Elvia follows a matrilineal succession system, where women hold the throne and men may serve in the military but are barred from inheriting the crown. Alexandra Valen, commander of the Northern Legion, earned great renown through her military achievements and had long guarded the frontier, earning deep loyalty among her troops. However, Queen Augusta, wary of Alexandra's overwhelming influence, secretly instructed the royal intelligence officer Celine Morven to conspire with Alexandra’s fiancé, Edmund Linton. Edmund forged treasonous letters using his skill in imitating handwriting, while Celine exposed them at a banquet. As a result, the Valen family was falsely accused of treason, brutally slaughtered, and Alexandra died in agony. On the brink of death, Alexandra’s soul unexpectedly transmigrated into the body of Princess Eleanor—the very princess she once despised—through an ancient golden amulet of the Twin Goddesses Church worn around her neck. Eleanor, the queen’s eldest daughter, was notorious for her decadence and lack of education, yet in truth she was merely a pawn used by the queen to balance against her second daughter, Margaret, and could be sacrificed at any moment. Upon awakening, Alexandra resolved to live on as Eleanor, concealing her true nature and advancing cautiously, plotting revenge against all who wronged her. She first reasserted authority within the princess’s household, then gradually won over three husbands, each harboring their own ambitions: Lucien Blackstone, a principled and resolute male general; Rain维尔, outwardly reckless but actually the leader of the Raven Society’s intelligence network; and Cedric Thorne, a gentle and sensitive scholar. She exploited Edmund’s weaknesses to bring him under her control, leveraging his vulnerabilities to manipulate her enemies. Through Lucien, she secured command of the royal guard; via Rain, she established an extensive intelligence network; and she dispatched her former subordinate, Sera Lyon, to gather remnants of the Northern Legion in Valania, forming a private army. Feigning a request to lead a campaign against rebels on the border, she deliberately left the capital vulnerable, luring Margaret into rebellion. Then, returning with her forces, she crushed the uprising and eliminated her political rivals. In the end, Eleanor marched on the palace, publicly exposing every detail of Alexandra’s wrongful conviction, forcing Queen Augusta to sign her abdication decree before executing her by hand. Ascending the throne as Eleanor, carrying Alexandra’s soul, she not only avenged her family’s injustice but also seized absolute power over Elvia.