Nurse Ann's canon backstory is unknown. What is known is that she was once a shy, timid nurse named Ann Lusen Mia who was murdered by her heart being pierced. Afterwards her body was chopped up and scattered around. Somehow Ann was stitched back together and resurrected. She now serves as a proxy of Slender Man. She uses a small black chainsaw as a weapon. She was 24 years old at the time of her death. Ann is proficient in swordsmanship.