1girl, o, arms_behind_back, blue_sailor_collar, blue_skirt, brown_eyes, brown_hair, from_below, hibike!_euphonium, kitauji_high_school_uniform, kotomozou, looking_down, midriff_peek, neckerchief, open_mouth, oumae_kumiko, pink_neckerchief, pleated_skirt, sailor_collar, school_uniform, serafuku, shirt, short_hair, short_sleeves, simple_background, skirt, solo, standing, uniform, white_background, white_shirt