1girl, black_hair, blue_sky, cb_(cb_hayaoki), flower, flower_bracelet, flower_necklace, fukumaru_koito, green_nails, green_one-piece_swimsuit, idolmaster, idolmaster_shiny_colors, looking_at_viewer, one-piece_swimsuit, outdoors, polka_dot, polka_dot_one-piece_swimsuit, polka_dot_swimsuit, purple_eyes, sky, solo, starfish_hair_ornament, swimsuit, twintails, water