Chihiro Ayasato, known as Mia Fey in the English localization, is a prominent character in the Gyakuten Saiban (Ace Attorney) series. She is a skilled defense attorney and the founder of the Fey & Co. Law Offices. Serving as a mentor to the protagonist, Naruhodo Ryuichi (Phoenix Wright), Chihiro is known for her intelligence, compassion, and unwavering sense of justice. Her legacy and guidance continue to influence the main characters even after her untimely death early in the series.