ass barefoot bikini breasts brown_hair cleavage collarbone dolphin floating_hair full_body game_cg highres jewelry long_hair medium_breasts necklace ogasawara_chisa orange_bikini outdoors ponytail q_tarou_(sora_to_umi_ga_fureau_kanata) red_eyes solo sora_to_umi_ga_fureau_kanata swimming swimsuit underwater yamashita_kouji