2girls, ahoge, alternate_costume, armpits, asuna_(sao), bad_pixiv_id, ball, bare_shoulders, beachball, between_breasts, bikini, blue_sky, breasts, cloud, cloudy_sky, day, elf, face_between_breasts, fairy_(sao), head_between_breasts, long_hair, medium_breasts, multiple_girls, navel, open_mouth, orange_eyes, orange_hair, outdoors, pointy_ears, purple_hair, red_eyes, sky, stomach, swimsuit, sword_art_online, thighs, water, wqn0930, yuri, yuuki_(sao)