1girl, animal_ears, arknights, bare_shoulders, bikini, blush, breasts, brown_eyes, brown_hair, choker, cowboy_shot, hands_up, jacket, long_sleeves, looking_at_viewer, navel, o-ring, o-ring_choker, off_shoulder, official_alternate_costume, open_clothes, open_jacket, otter_ears, otter_girl, otter_tail, outdoors, palm_leaf, roberta_(arknights), roberta_(summer_flowers)_(arknights), short_hair, short_shorts, shorts, small_breasts, smile, solo, stomach, swimsuit, tail, tapoica_(1287332395), water, white_bikini, white_choker, white_jacket, white_shorts