1girl, arms_behind_back, bare_shoulders, bikini, blue_bikini, blue_hair, blue_sky, blush, breasts, cloud, hair_bun, innertube, looking_at_viewer, navel, ocean, outdoors, palm_tree, purple_eyes, r-man, shima_rin, single_hair_bun, sky, small_breasts, solo, swimsuit, tree, wading, yurucamp