1girl, bath_yukata, black_hair, blush, breasts, breasts_apart, collarbone, full-face_blush, idolmaster, idolmaster_cinderella_girls, indoors, japanese_clothes, kimono, looking_at_viewer, mariabowl, medium_breasts, ryokan, shiragiku_hotaru, short_hair, single_bare_shoulder, solo, yukata