Olivia, the daughter of the Saifard family, endures relentless and insidious bullying from her stepmother and stepsister. She is powerless to resist because her mind and body have become separated, leaving her physical form in a perpetual state of emptiness. Despite this, she holds onto sorrowful memories of her dear brother Sirius and her late mother. After years of torment, her stepsister Anna makes a decisive and brutal choice, attacking Olivia and leaving her for dead in a forest.

On the verge of death, Olivia is rescued by Sirius, a powerful young lord from a northern financial conglomerate who had once shown her kindness. He takes her away from her abusive family. As Olivia recovers, she begins to awaken to her true heritage: she is the daughter of the Spirit Queen, Shera, a being of immense power who oversees the world. The separation of Olivia's mind and body was a consequence of this latent power.

After her escape, swift and ruthless retribution falls upon her stepmother and stepsister. The First Knight Order of the kingdom subjects them to severe interrogations for their disrespect towards Olivia. The revenge, however, is not carried out by Olivia herself but by the protective forces that rally around her.

As Olivia learns to control her abilities, she travels with Sirius to the Cassina Duchy, where she encounters Miranda Cassina, a woman who falsely claims to be Sirius's fiancée. This misunderstanding incurs Sirius's wrath, leading to severe consequences for the Duchy. Meanwhile, Olivia's own spirit powers begin to go out of control, leading to her being taken to the spirit realm by her mother, Shera. There, the Spirit Queen, who is curious about human emotions and somewhat detached from her daughter's suffering, teaches Olivia how to control her immense power.

Eventually, Olivia returns from the spirit realm on her own. Sirius immediately proposes, and she accepts, becoming his fiancée. As a symbol of their bond, he grants her the lush Raneve region. Just as they begin to enjoy their peaceful life, a project at a research institute reaches completion, heralding a new development that threatens their world.

The narrative is defined by its harsh opening and the protagonist's initial helplessness, followed by a swift and brutal comeuppance for her tormentors, delivered by others rather than the gentle-natured Olivia. A significant theme is the detached and terrifying nature of Olivia's mother, the Spirit Queen, who observes her daughter's suffering as a means to understand humanity, adding a layer of cosmic horror to the fantasy. The story balances this cruelty with a devoted, protective romance between Olivia and Sirius, who acts as her primary defender.