1girl, animal_ears, arknights, bikini, breasts, brown_eyes, brown_hair, cleavage, collarbone, flip-flops, jacket, k@bu, long_sleeves, looking_at_viewer, makeup_brush, medium_breasts, navel, one_eye_closed, open_clothes, open_jacket, open_mouth, otter_ears, otter_girl, otter_tail, roberta_(arknights), roberta_(summer_flowers)_(arknights), sandals, short_hair, short_shorts, shorts, simple_background, smile, solo, stomach, swimsuit, tail, white_background, white_bikini, white_jacket