Sora Harukawa’s vibrant personality mirrors his synesthesia, a neurological trait that paints sounds, scents, and emotions into vivid hues. This perceptual lens lets him discern lies and intuit moods through shifting color patterns, yet overwhelms him in chaotic settings, driving him to retreat from crowded spaces or buzzing electronics. Childhood mockery branded him an “alien” for his odd reactions, sparking temporary reclusion until resilience took root. A fleeting childhood encounter with Natsume Sakasaki—later his mentor and Switch unit senior—left an imprint on both. Though Sora assumed Natsume forgot their meeting, Natsume privately cherished the bond formed through Sora’s singular worldview. Their high-school reunion solidified this connection, drawing Sora into NEW DIMENSION’s Switch unit alongside Natsume and Tsumugi Aoba. Switch’s fusion of “magic” and technology resonates with Sora’s mission to craft kaleidoscopic performances that spark joy, channeling his synesthetic visions into art. Innately optimistic yet acutely empathetic, Sora articulates thoughts through color analogies that often baffle listeners, though his sincerity shines through. A laid-back upbringing nurtured adaptability and playful spontaneity, yet shadows of past loneliness linger, fueling quiet fears of alienation if he reveals his unfiltered self. Switch’s camaraderie helps him reframe his differences as strengths, empowering him to reject conformity while embracing his identity. Petite in stature, Sora’s bright yellow hair streaked with lime green and aqua eyes mirror his lively spirit. His casual style—oversized hoodies, loosely draped blazers—contrasts with his agile parkour skills and video game prowess, even mastering controllers with his feet. He shuns dimly lit spaces, preferring environments as radiant as his outlook. Despite a youthful demeanor, he fiercely upholds his professionalism as an idol, resisting patronizing attitudes. Growth emerges through managing sensory floods during performances and decoding social cues he once found mystifying. Lingering insecurities about attachment slowly ease within Switch’s nurturing dynamic. His family—parents unfazed by his quirks and a younger sister—remains a grounding force, with Sora hoping to bridge his familial and idol worlds by introducing them to Natsume. Through evolving confidence, he transforms synesthesia from a vulnerability into a tool, crafting stages ablaze with color to uplift others.