1girl, armpits, arms_behind_head, arms_up, blue_one-piece_swimsuit, blush, breasts, brown_eyes, brown_hair, chiyosuke_(nosuke21), closed_mouth, collarbone, competition_school_swimsuit, covered_navel, cowboy_shot, frown, idolmaster, idolmaster_cinderella_girls, long_hair, looking_at_viewer, low_ponytail, one-piece_swimsuit, ponytail, school_swimsuit, sidelocks, small_breasts, solo, standing, swimsuit, thighs, twitter_username, v-shaped_eyebrows, very_long_hair, water_drop, wet, wet_clothes, wet_swimsuit, yorita_yoshino