welt (kinsei koutenkyoku), infection monitor (arknights), mint (arknights), arknights, absurdres, commentary, highres, 1girl, :d, ahoge, animal ear fluff, animal ears, aqua eyes, bare shoulders, black jacket, black ribbon, breasts, clothes writing, collarbone, grey hair, hair ribbon, jacket, long hair, looking at viewer, off shoulder, open mouth, ribbon, signature, simple background, small breasts, smile, solo, teeth, upper teeth only, white background