A charming Japanese high school girl dressed in a classic school uniform, confidently wielding a sleek katana in a shadowy alley. The scene has a cinematic flair, captured in a highly detailed 3D render powered by unreal engine, showcasing a 32k resolution. The aspect ratio is 9:16, with an emphasis on a vivid and expressive style, blending elements of realism and artistry to highlight her poised yet enigmatic presence in the dimly lit setting.