1girl, d, asari_nanami, backlighting, beach_towel, bikini, blue_bikini, blue_eyes, blue_hair, blue_towel, blush, breasts, cleavage, collarbone, dot_nose, fish_hair_ornament, hair_ornament, hair_rings, halterneck, holding, holding_towel, idolmaster, idolmaster_cinderella_girls, idolmaster_cinderella_girls_starlight_stage, kaishinshi, long_hair, looking_at_viewer, medium_breasts, navel, o-ring, o-ring_bikini, open_mouth, side-tie_bikini_bottom, simple_background, smile, solo, standing, swimsuit, towel, very_long_hair, white_background