1girl, black_skirt, black_thighhighs, blush, border, bow, bowtie, breasts, buttons, cosplay, finger_frame, green_vest, hair_bow, handa_roco, hands_up, idolmaster, idolmaster_million_live!, legs, lielos, light_brown_hair, long_hair, long_sleeves, looking_at_viewer, name_tag, official_alternate_hairstyle, on_one_knee, one_eye_closed, otonashi_kotori, otonashi_kotori_(cosplay), panties, pantyshot, parted_bangs, pencil_skirt, sandals, shirt, side_ponytail, skirt, small_breasts, solo, thighhighs, thighs, underwear, v-shaped_eyebrows, vest, white_border, white_footwear, white_panties, white_shirt, yellow_background, yellow_bow, yellow_bowtie, yellow_eyes