1girl, bare_arms, black_hair, blue_eyes, blurry, blurry_background, blush, breasts, clothes_lift, collarbone, competition_swimsuit, cowboy_shot, day, grey_one-piece_swimsuit, hair_between_eyes, high_ponytail, kasumi_saika, large_breasts, lifted_by_self, long_hair, looking_at_viewer, midriff, navel, one-piece_swimsuit, outdoors, parted_lips, pool_ladder, poolside, shuumatsu_no_harem, sideboob, solo, stomach, swimsuit, swimsuit_lift, toudou_akira_(shuumatsu_no_harem)