Enduring the fallout of her father's political scandal and his following suicide, Oriko Mikuni makes a desperate wish to Kyuubey: to discover her purpose in life. With the "gift" of foresight as a magical girl, Oriko learns that only further despair awaits her, culminating in the destruction of Mitakihara City. To effectively prevent this unfortunate outcome, the fate of a familiar girl must be changed.

This revelation serves as the foundation for Oriko's new goal to battle "witches" and bring unwavering peace to the world. However, as Oriko sets her plans in motion, ongoing affairs begin to interfere, presenting unexpected challenges along the way. Having already faced many hardships, Oriko is resolved to overcome such obstacles and strive toward a better future—even if it means sacrificing the lives of others.