1girl, aqua_eyes, ass, barefoot, beach_umbrella, bikini, bikini_under_clothes, blue_hair, blush, bracelet, braid, breasts, cloud, day, dutch_angle, embarrassed, feet_out_of_frame, from_behind, hair_bun, hair_ribbon, haruki_(haruki678), idolmaster, idolmaster_million_live!, jewelry, kneeling, large_breasts, long_hair, looking_at_viewer, looking_back, no_pants, open_mouth, outdoors, pink_bikini, ponytail, poolside, ribbon, see-through, see-through_shirt, shiraishi_tsumugi, shirt, sidelocks, sky, soles, solo, swimsuit, t-shirt, tied_shirt, umbrella, water_drop, wavy_mouth, wet, wet_clothes, wet_shirt, white_shirt