Hibiki Shikyōin evolves from antagonist to protagonist, fueled by a passion for PriPara’s vibrant world. Born into a showbiz dynasty, they entered modeling young after a mistaken scouting as a male talent, later embracing a fluid identity that reveled in androgynous expression. Their worldview, steeped in hierarchical elitism and Randian Objectivism, dismissed "unworthy" idols and manipulated rivals like Laala and Fuwari to seize power—rooted in childhood abandonment when peers vanished after their parents’ disappearance, leaving a fear that only relentless performance ensures acceptance.

Beneath a cunning facade lies vulnerability: Hibiki struggles to articulate emotions yet paradoxically shields allies, sacrificing themselves to save Fuwari or resurrecting the devoted butler Andou. Relationships expose contradictions—Falulu, dubbed "Princess," becomes a coveted recruit for their Dream Team, while Fuwari’s carefree spirit chips at their cynicism. Childhood acquaintance Ajimi Kiki’s unwavering friendship slowly erodes their disdain for bonds, culminating in Hibiki discarding a self-symbolizing figurine into an "idiot pile," rejecting perfectionist ideals.

In *PriPara: Everyone’s Longing! Let’s Go PriParis!*, Hibiki deploys desert-stage sorcery to conjure an oasis, rescuing Dressing Pafé with a blend of playful mockery and covert altruism. Their tech genius—often mistaken for magic—fuels hacks and elaborate schemes, earning the "Thieving Genius" moniker. Aesthetic shifts mirror internal growth: childhood curls yield to a sharp, boyish cut to evade Ajimi’s recognition, while coords like the Brilliant Prince Cyalume and Military Look fuse regal elegance with tactical flair. By the story’s close, Hibiki retains enigmatic charm and mischief but tempers it with guarded empathy, safeguarding PriPara’s sparkle while toying with—and protecting—those who pierce their guarded heart.