Matsuri Kazamaki, heir to the Kazamaki exorcist ninja lineage, wields ancestral wind techniques honed under his grandfather Seigen’s tutelage. Bonded since childhood with Suzu Kanade, an ayakashi medium, his oath to protect her from malevolent spirits fuels his resolve. A fateful clash with Shirogane, the Ayakashi King, left Matsuri cursed to toggle between genders—a male form marked by spiky crimson hair, red eyes, and ninja garb with gauntlets, and a female guise with silvery-pink hair tied by a red pinwheel, a mystical stomach sigil visible solely to spirits, and an initially uncomfortable adjustment to feminine attire, though he clings to his ninja fundoshi. Driven by duty and a rigid moral code, Matsuri prioritizes others’ safety, masking insecurities over his feelings for Suzu and rivalry with exorcist Soga Ninokuru. His secret dual identity complicates interactions with classmates Yayoi and Lucy, who perceive only his female persona, while simmering romantic tension with Suzu intertwines with his struggle to reconcile physical transformation and self-image. In combat, Matsuri manipulates wind through kunai-shaped gusts, slicing gales, and purifying pinwheels, supplementing these with substitution tactics, barrier scrolls, and the close-combat "Inner Wind" technique. Temporary power loss forced inventive adaptations, later enabling alliances even with Shirogane. The gender curse births comedic mishaps—misplaced restroom entries—yet gradually fosters acceptance, as Matsuri acknowledges the curse’s role in deepening bonds. Choosing prolonged femininity for growth, he navigates irreversible changes tied to Shirogane’s waning power, balancing exorcist duties, high school life, and unresolved romance. Born August 1, 2006, to exorcist leader Matoi and grandson of Seigen, Matsuri ranks second academically among peers. His arc traces a path from duty-bound rigidity to nuanced self-acceptance, etching resilience amid shifting identities and entwined fates.