Kazumi's friend and a middle school student who lives in her home with Kazumi and Kaoru and is also a Puella Magi. She is a best-selling novelist as a result of using her wish to meet with an editor who would recognize her talent. She uses a magical book which allows her to read a witch's mind, allowing her to determine its weakness. Whenever she has writer's block, she grows horns and enters a fierce cooking phase before going on a shopping spree.