Naoya Kido is a silver-haired high school student with piercing grey eyes, embodying a dynamic blend of athletic vigor and subcultural passion. His energetic persona aligns with surfing and competitive sports, integral to the series' action-driven world. Beyond the waves and athletic feats, he embraces otaku sensibilities, delving into niche hobbies with fervor. A striking visual hallmark—his distinctive "blinding bangs"—cascades sharply across his forehead, amplifying his modern, stylized aesthetic within the narrative's vibrant backdrop.