1girl, beach, bikini, black_hair, blue_eyes, blush, breasts, classmate_(gentsuki), cleavage, closed_mouth, clothes_lift, cowboy_shot, gentsuki, groin, hands_on_own_chest, large_breasts, lifted_by_self, light_rays, long_hair, looking_at_viewer, low_twintails, micro_bikini, monochrome, navel, ocean, original, outdoors, rock, shirt_lift, short_sleeves, skindentation, smile, solo, speech_bubble, stomach, sunbeam, sunlight, swimsuit, twintails, water, white_bikini