90s Polaroid style, wide-angle lens, slight underexposure, coarse grainy film texture, old wooden school staircase with sunlight streaming through dusty windows, a breathtakingly beautiful Japanese high-school girl with a photorealistic idol-like face as stunning as Nogizaka46 members or Minami Hamabe, medium-length brown hair tied loosely, warm gentle smile, wearing a summer sailor uniform (white blouse, navy skirt), climbing the stairs, skirt hem fluttering naturally, camera from behind at low angle, (idol-face clarity: 2.0) (authentic Japanese face: 1.7) (skirt motion: 1.4) (nostalgic school mood: 1.2) nostalgic dreamy tone, handheld candid 35mm film aesthetic