1girl, ;d, adjusting_eyewear, arisugawa_natsuha, bad_pixiv_id, bikini, blue_sky, blush, breasts, cleavage, cloud, day, eyewear_on_head, grin, halterneck, hand_on_eyewear, idolmaster, idolmaster_shiny_colors, kneeling, long_hair, looking_at_viewer, medium_breasts, mitoha, navel, o-ring, o-ring_bikini, one_eye_closed, orange_hair, outdoors, palm_tree, sky, smile, solo, swimsuit, tinted_eyewear, tree, very_long_hair, white_bikini