1girl, alternate_hairstyle, breasts, closed_mouth, clothing_cutout, copyright_name, crop_top, greyscale, hair_rings, kotoyama, long_hair, looking_at_viewer, monochrome, nanakusa_nazuna_(yofukashi_no_uta), ringed_eyes, short_hair, simple_background, sleeveless, sleeveless_turtleneck, solo, turtleneck, upper_body, yofukashi_no_uta