1girl, o, blush, brown_eyes, brown_footwear, brown_hair, collarbone, dated, green_shirt, hibike!_euphonium, kneehighs, knees_together_feet_apart, knees_up, loafers, looking_at_viewer, nii_manabu, oumae_kumiko, parted_lips, pleated_skirt, ponytail, shirt, shoes, short_hair, short_sleeves, signature, sitting, skirt, socks, solo, t-shirt, white_skirt, white_socks