Elie is the primary female protagonist of the series and a mysterious young woman who joins Haru Glory on his journey. She is introduced as a spirited individual who has lost all memories of her life prior to one year before the story begins. This profound amnesia is the central driving force of her character, as she accompanies Haru in the hopes of discovering the truth about her own identity and past.

In terms of personality, Elie is generally lively, bubbly, and can be somewhat reckless or impulsive. She has a notable temper and is not afraid to express her anger, often resorting to physical comedy, particularly when she feels embarrassed or wronged by Haru. One of her most prominent quirks is her undying love for gambling and casinos, a habit she frequently uses to procure funds for the group. Despite her often cheerful and ditsy exterior, her situation is a serious one, and she is capable of deep emotional vulnerability, especially when confronting the gaps in her memory.

Elie's primary weapon is a pair of tonfa blasters, which function as powerful gun-like weapons capable of firing explosive bullets with considerable force. She is a highly accurate markswoman with these weapons, often able to take down multiple enemies in rapid succession. However, her most significant and dangerous ability is her possession of a magic called Etherion. This power is described as immensely destructive, with the potential to wipe out a vast portion of the world. Elie has little control over this power initially; it tends to manifest involuntarily during moments of extreme emotional stress, such as when her friends are in mortal danger. As the story progresses and she learns more about her origins, she begins to understand and command this ability more effectively.

Her role in the story is deeply intertwined with the central plot. The mystery of her past is not just a personal quest but a key to understanding the history of the Rave stones and the world itself. She is a member of the Rave Warriors, the team of protagonists fighting against the evil organization Demon Card. Her value to the group extends beyond her combat skills, as her determination and courage often serve as an emotional anchor for her companions.

Elie's key relationships are fundamental to her development. Her bond with Haru Glory is the most significant. What begins as a promise from Haru to help her find her memories slowly deepens into a strong romantic connection, with Haru becoming her most trusted confidant and a source of strength. She also forms close friendships with other members of the group, such as the silver-wielding thief Hamrio Musica and the wizard Sieg Hart, who holds crucial knowledge about her forgotten past.

The revelation of her background is the climax of her character arc. It is ultimately discovered that Elie is not simply a girl with amnesia but is actually Resha Valentine, a legendary figure from fifty years prior who was forced to use her Etherion powers to create the Rave stones. To escape a prophesied death, she faked her demise, cut her hair, changed her name to Elie, and placed herself into a magical sleep from which she awoke with no memories. This discovery forces her to reconcile her current identity with the history and responsibilities of the person she used to be. Over the course of the story, she grows from a carefree amnesiac into a more mature, self-possessed warrior who fully accepts her past and her power. Following this acceptance, she eventually marries Haru, and they have a son together, bringing her personal journey of self-discovery and connection to a close.