1girl, bad_pixiv_id, blue_eyes, blue_hair, blue_necktie, blue_skirt, blue_theme, classroom, desk, feet_out_of_frame, guitar, guitar_case, hand_up, indoors, instrument, instrument_case, long_hair, looking_at_viewer, necktie, original, school_uniform, shirt, shirt_tucked_in, skirt, solo, sutera_sea, uniform, white_shirt