3: bikini black_hairband blue_eyes blurry blush breasts commentary_request day depth_of_field downblouse frilled_bikini frills hair_ornament hairband innertube leaning_forward looking_at_viewer navel outdoors rouka_(akatyann) ryuuou_no_oshigoto! short_hair silver_hair small_breasts snowflake_hair_ornament solo sora_ginko swimsuit wet yellow_innertube