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 lifting_own_clothes 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)