Nagaru Hoshijiro is the eccentric student council president of the Anti-Magic Academy who secretly aspired to become the next head of the Inquisition. She is the second leader of the heretical group known as the Dissidents, also referred to as the Heretic Alliance, and is contracted to the powerful relic Mjolnir. Due to a brain disorder, Nagaru is incapable of feeling any negative emotions, a condition that profoundly shapes her personality and actions. This emotional detachment makes her appear unnervingly calm and amiable on the surface, but it also causes her words to be perceived as cold or hateful because she lacks the empathy needed to soften them. During her time as a student, she was known as sloppy and negligent, yet she paradoxically acted like a caring big sister figure despite her short stature. Her inability to grieve or experience fear was starkly illustrated when she lost all her comrades during an event involving Mephistopheles and felt nothing. Later in the story, Nagaru is revealed to be the god of a fragmented world that serves as the home base for the Dissidents, granting her godlike authority over that pocket reality. Her motivations are rooted in her condition and her secret ambition to lead the Inquisition, though her allegiance ultimately shifts toward the heretical cause. As a relic eater contracted to Mjolnir, she wields significant power, and her status as a deity of a fractured world allows her to manipulate that domain. Her development centers on the tension between her unnatural emotional state and her role as a leader, making her a complex figure whose actions are driven by logic and detachment rather than passion.