Festenia Muse (フェステニア・ミューズ) is one of the three sub pilot for the main characters in Super Robot Wars J. Together with Katia Grignarl and Melua Melna Meia, she was kidnapped and experimented by the Fury. With the help of E-Selda Shun, the three girl escaped to earth with a mech that will be piloted by the main character. In the Original Generation time, she was born from an Earthling mother and a Fury father. Festenia is secretly insecure,although she usually put a smile and acts as if everything is alright. She is the person who helped Touya to get out of his shell. Eating is one of her favorite hobbies. In battle, Festenia is specialised in close-range combat. At the end of the game, she and others girl decided to live with the main character Touya Shiun.