1girl, ahoge, arknights, bare_shoulders, bikini, black_hair, breasts, cleavage, collarbone, grey_background, grey_eyes, jacket, la_pluma_(arknights), la_pluma_(summer_flowers)_(arknights), looking_at_viewer, medium_breasts, mouth_hold, off_shoulder, short_hair, solo, swimsuit, tochi_(tochitochi2523), upper_body, whistle, white_bikini, white_jacket