1girl, o, arm_up, black_jacket, black_skirt, blue_archive, blue_eyes, blue_necktie, blush, breasts, collared_shirt, cowboy_shot, dutch_angle, from_above, jacket, kabu_(niniko2ko), long_hair, long_sleeves, looking_away, looking_to_the_side, loose_necktie, lying, medium_breasts, miniskirt, necktie, on_back, open_clothes, open_jacket, parted_bangs, parted_lips, pleated_skirt, purple_eyes, purple_hair, shirt, shirt_tucked_in, skirt, solo, sunlight, sweat, thighs, two_side_up, unworn_hair_ornament, white_shirt, yuuka_(blue_archive)