1girl, bikini, bikini_skirt, blush, brown_eyes, brown_hair, embarrassed, floral_print, frilled_bikini, frills, furrowed_brow, hair_between_eyes, idolmaster, idolmaster_cinderella_girls, kotobumi_mugina, light_brown_hair, looking_at_viewer, looking_back, medium_hair, morikubo_nono, open_mouth, print_bikini, ringlets, sky, solo, swimsuit, water, white_bikini