In a world where magic is a common gift but not equally distributed, individuals are judged by the frequency of their spellcasting. Kazuki Shikimori, with the lowest spell count at Aoi Academy, faces disdain from his peers despite his prestigious magical lineage. His ancestry, boasting a lineage of powerful sorcerers, attracts the attention of three young women: Yuna Miyama, who proclaims herself as his spouse; Rin Kamishiro, a fierce swordswoman aiming to end his life for her freedom; and Kuriko Kazetsubaki, who pursues him for his genetic potential. Amidst the envy of his male classmates, Kazuki must navigate the affections and ambitions of these determined women.