2girls, arm_around_waist, arm_up, bikini, blonde_hair, blue_sky, blush, breasts, closed_mouth, cloud, cloudy_sky, day, elf, green_eyes, groin, half-closed_eyes, halterneck, kein_hasegawa, long_hair, looking_at_viewer, medium_breasts, multi-strapped_bikini, multiple_girls, navel, open_mouth, original, outdoors, partially_underwater_shot, pointy_ears, ponytail, red_bikini, shading_eyes, side-by-side, sky, smile, standing, swimsuit, very_long_hair, water, white_bikini, white_hair, yellow_eyes