1girl, ahoge, arms_behind_back, b1ack_illust, black_pantyhose, blurry, blurry_background, blush, breasts, brown_hair, drill_hair, holding_own_arm, idolmaster, idolmaster_million_live!, indoors, looking_at_viewer, looking_back, medium_breasts, monitor, pantyhose, plant, red_eyes, red_skirt, shirt, side_ponytail, side_slit, skirt, solo, white_shirt, yokoyama_nao