1girl, ao oni (onioni-aoi), arknights, black cape, black headwear, black nails, border, cape, fangs, grey hair, hands up, hat, heart, heart (organ), holding, holding heart, looking at viewer, official alternate costume, pale skin, portrait, red eyes, scar, scar across eye, solo, tongue, tongue out, v-shaped eyebrows, warfarin (arknights), warfarin (the feast) (arknights), white border