3girls, o, ahoge, amami_haruka, arm_support, beach, bikini, bikini_under_clothes, blonde_hair, blue_bikini, blush, breasts, cleavage, clothes_lift, collarbone, fallen_down, green_eyes, haruki_(haruki678), hoshii_miki, idolmaster, idolmaster_(classic), idolmaster_million_live!, kisaragi_chihaya, kneeling, large_breasts, lifted_by_self, long_hair, looking_at_viewer, multiple_girls, navel, outdoors, sand, shirt_lift, side-tie_bikini_bottom, sideboob, sidelocks, solo_focus, stomach, swimsuit, very_long_hair, white_lily