1girl, animal_ears, arknights, bare_shoulders, bikini, blue_background, braid, breasts, brown_eyes, brown_hair, closed_mouth, cowboy_shot, from_side, gradient_background, grey_background, holding, jacket, long_sleeves, looking_at_viewer, looking_to_the_side, makeup_brush, medium_breasts, mizuhashi_parusui, open_clothes, open_jacket, otter_ears, otter_girl, otter_tail, roberta_(arknights), roberta_(summer_flowers)_(arknights), short_hair, side_braid, solo, swimsuit, tail, white_bikini, white_jacket