Maya Fey is a central character in the "Gyakuten Saiban" series, also known as "Ace Attorney" in English. She is a spirit medium in training and the younger sister of Mia Fey, Phoenix Wright's mentor. Maya becomes Phoenix's assistant after her sister's tragic death. Her cheerful personality and unwavering faith in Phoenix help him navigate challenging court cases. Maya often provides comic relief but is also pivotal in channeling spirits to provide crucial testimony in trials. Her role is essential to both the plot and the emotional depth of the series.