2girls, afloat, bikini, blunt_bangs, breasts, collarbone, front-tie_bikini_top, front-tie_top, graphite_(medium), greyscale, hand_up, hat, headgear, hood, hood_down, hoodie, innertube, jacket, jacket_over_swimsuit, kotonoha_aoi, large_breasts, long_hair, long_sleeves, looking_ahead, looking_at_another, monochrome, multiple_girls, one_side_up, open_clothes, open_hoodie, open_mouth, partially_submerged, ponytail, quilted_clothes, reclining, refraction, simple_background, straw_hat, striped, striped_bikini, swimming, swimsuit, toriniku29, touhoku_kiritan, traditional_media, voiceroid, water