2girls, arknights, azure_silan, bare_shoulders, barefoot, bikini, blue_sky, breasts, brown_hair, cleavage, closed_eyes, closed_mouth, cloud, cloudy_sky, day, detached_sleeves, eyjafjalla_(arknights), eyjafjalla_(summer_flower)_(arknights), hand_up, horns, ifrit_(arknights), ifrit_(sunburn)_(arknights), knees_up, lap_pillow, long_hair, lying, medium_breasts, multiple_girls, navel, on_back, open_mouth, outdoors, puffy_short_sleeves, puffy_sleeves, red_bikini, red_eyes, red_sleeves, short_sleeves, sitting, sky, small_breasts, smile, swimsuit, very_long_hair, white_bikini, yokozuwari