Inaho Kushiya attends Tenbi Academy as both a student and Student Council Treasurer, perpetually radiating laziness. She slumps through her days napping or devouring mountains of sweets and snacks. This sleepy exterior masks immense magical power. Her formidable abilities center on barrier magic potent enough to halt major assaults and restrain foes, though she wields other spells proficiently, including offensive techniques. She frequently employs magic for casual whims, like snatching food. Combat relies on overwhelming magical strength rather than physical prowess, though she displays surprising agility when sufficiently motivated.

Her deepest bond is with childhood friend Takeru Ooyama, a connection layered with complexity. Inaho harbors intense romantic feelings for Takeru, expressed through fiercely possessive behavior, sharp jealousy towards other girls, and persistent attempts at physical affection—usually resisted by Takeru. Crucially, it's revealed she secretly shielded Takeru throughout their childhood, using her magic to intercept countless accidents and attacks unknown to him. This protective drive remains a core motivation.

As threats escalate against the academy and Takeru, Inaho gradually engages more directly in conflicts. While clinging to her lazy habits, she demonstrates increased seriousness and willingness to fight when necessary, especially to defend Takeru or friends like Kodama Himegami and Usui Minori. Her focus, however, remains predominantly fixed on Takeru. She actively participates in major battles against antagonists targeting Maken users and other powerful entities, her crucial barrier magic pivotal in defensive and strategic scenarios.

Further exploration reveals the depth behind her past protective actions and unwavering commitment. Moments arise where confronting powerful adversaries forces her to unleash her full capabilities. Though her core traits—laziness, gluttony, and deep affection for Takeru—persist, her role evolves from a seemingly peripheral figure into a key magical asset within her group, fundamentally driven by her dedication to Takeru's safety and happiness.