1girl, ahoge, ball, beachball, bikini, black_bikini, blonde_hair, blue_eyes, breasts, ferris_wheel, frilled_bikini, frills, hachimiya_meguru, idolmaster, idolmaster_shiny_colors, long_hair, looking_at_viewer, moku0819, navel, night, outdoors, pool, side-tie_bikini_bottom, smile, solo, standing, swimsuit, wading, water