1girl, arms_up, bad_pixiv_id, beach, bikini, bikini_bridge, black_hair, blush, braid, breasts, idolmaster, idolmaster_shiny_colors, kazano_hiori, looking_at_viewer, mole, mole_under_mouth, moonggu, navel, outdoors, purple_eyes, small_breasts, solo, strapless, strapless_bikini, swimsuit, twin_braids