A candid, photorealistic Japanese high school classroom scene in vertical smartphone-photo framing. Three schoolgirls wearing matching traditional navy blue sailor uniforms are the main focus in the foreground. The central standing girl has extremely long, straight, glossy black hair that falls well past her knees, almost to the floor, and she is gently combing the lower section with a small comb while looking downward. A second girl stands behind and slightly to the right, also with long straight black hair, holding an open compact mirror in one hand and adjusting her bangs or hair near her temple with the other. A third girl kneels on the floor at the right front, carefully holding and arranging the central girl's long hair with both hands. All three wear dark navy sailor-style school uniforms with white stripe trim, pleated skirts, long sleeves, white socks, and indoor school shoes. Their faces are obscured or blurred. In the background, exactly 8 additional students in dark school uniforms sit at desks in small groups, facing away or sideways, creating the feel of an ordinary class period or homeroom. The classroom has wooden desks and chairs, large bright windows along the left side letting in soft daylight, a green chalkboard on the right wall, bulletin papers pinned near the board, and a framed Japanese calligraphy sign above the chalkboard reading {argument name="wall sign text" default="Sincerity in Creation, Reality in Action"}. The atmosphere is natural and unposed, like a documentary snapshot. Emphasize realistic lighting, fine hair detail, the unusual dramatic length of the central girl's hair, and a believable everyday school environment.