1girl, arm_support, black_skirt, bow, bowtie, breasts, bromide, cellphone, green_hair, hairband, idolmaster, idolmaster_(classic), indoors, looking_at_viewer, medium_breasts, mole, mole_under_mouth, otonashi_kotori, phone, plaid, plaid_skirt, pleated_skirt, round_teeth, school_uniform, shirt, shirt_tucked_in, skirt, smile, solo, teeth, tsurui, white_shirt, yellow_bow, yellow_bowtie, yellow_hairband