1girl, o, black_shorts, blush, breasts, brown_hair, chiyosuke_(nosuke21), full-face_blush, furrowed_brow, idolmaster, idolmaster_cinderella_girls, jacket, looking_at_viewer, medium_breasts, own_hands_together, partially_unzipped, red_jacket, sakuma_mayu, short_shorts, short_twintails, shorts, simple_background, solo, sweatdrop, track_jacket, twintails, twitter_username