Elisha Elfrieden stood as the legitimate successor to the Elfrieden Kingdom's throne, the sole surviving member of the royal bloodline after a succession crisis triggered by the death of the 12th king. In her youth, she displayed a tomboyish and unconventional nature for a princess, frequently indulging in risky behavior and lacking royal decorum, having never expected to become queen. This changed when she began receiving memories from her future selves through magical phenomena, compelling her to adopt a reserved, pragmatic, and traditionally princess-like demeanor as a survival strategy during the politically unstable period.

Throughout the succession crisis, Elisha endured distressing future memories that plunged her into mental spirals and depressive states. Her marriage to Albert, granting him her family name and the title of the 13th King of Elfrieden, marked a crucial turning point, restoring her hope and will to live. Despite her rightful claim, she refused the throne herself, transferring kingship to Albert while remaining his devoted supporter. Her influence significantly shaped Albert's later decision to abdicate in favor of Kazuya Souma.

To secure legal protection and social standing for Tomoe Inui, a member of the Mystic Wolf race possessing the rare ability to speak to animals and demons, Elisha and Albert adopted her. This act made Tomoe the adoptive sister of Liscia Elfrieden and welcomed her into the royal family.

In her later years, Elisha became queen mother and grandmother. Generally reserved and quiet, she demonstrated deep affection as a doting grandmother to her grandchildren, Cian and Kazuha Elfrieden, the twin children of Liscia and Kazuya Souma.