A charming young woman with sleek, white hair styled into a ponytail, sporting a horn-adorned headband. She wears a tailored dark denim jacket and carries a backpack equipped with a gleaming katana. Her striking blue eyes reflect the vibrant lights of the cyberpunk-inspired subway setting around her. The scene is captured in hyperrealistic detail, reminiscent of an 8k, unreal engine 3D render. The atmosphere is infused with an expressive style, invoking a sense of dynamic energy and futuristic allure.