1girl, black_hair, black_panties, black_thighhighs, brown_shirt, brown_skirt, closed_mouth, elbow_rest, elbows_on_knees, falling_petals, foot_out_of_frame, hibike!_euphonium, kitauji_high_school_uniform, knees_together_feet_apart, knees_up, kousaka_reina, light_blush, miniskirt, no_shoes, panties, pantyshot, petals, pleated_skirt, purple_eyes, raised_eyebrows, school_uniform, serafuku, shirt, sitting, skirt, solo, thighhighs, thighs, underwear, yoruminono_yo