1girl, bad_twitter_id, bikini, blush, bracelet, breasts, brown_eyes, chikoku, flower, frilled_bikini, frills, green_hair, hair_flower, hair_ornament, hairband, hibiscus, holding, idolmaster, idolmaster_(classic), jewelry, looking_at_viewer, mole, mole_under_mouth, open_mouth, otonashi_kotori, red_flower, short_hair, simple_background, solo, swimsuit, white_background, yellow_bikini, yellow_hairband