Anna is a Chief Kakuzawa's daughter. She looks up to him in a similar fashion to Nana and Kurama's relationship. She was good at running and struggled to meet her father's expectations, for he considered her "superior" due to her Diclonius heritage. She underwent an operation on her father's request, to make her "more superior". The results of the operation have increased her mental capacity and therefore she can predict estimates of what the future may be. However the operation has turned her into a giant deformed Diclonius. Her previous self is seen in a number of flashbacks.