Fear, a knight's daughter aspiring to be a knight, recalls her past life as a 'Great Saintess' while on the brink of death. However, she discovers that the Saintess role is incredibly weak and endangered, revered despite its diminished power. Her abilities are based on lost, fairytale-like magic. Remembering a threat from the Demon King's right-hand man in her past life—to be killed if she were reborn as a Saintess—she decides to become a knight and live quietly. Despite her intentions, she ends up using her convenient powers.