Mia Fey is a defense attorney and a prominent supporting figure in the Ace Attorney series. She begins her legal career at Grossberg Law Offices before founding her own firm, Fey and Company Law Offices. She is the older sister of Maya Fey and the daughter of Misty Fey, placing her in the main family of the Kurain spiritualist clan, which practices the art of spirit channeling. Mia possesses formidable channeling abilities herself, described as first‑class. She is known for her intelligence, quick thinking, and a fiercely determined approach to defending her clients, often relying on bluffing tactics to gain control of a trial. Her unwavering belief in the innocence of those she represents drives her actions both as a living lawyer and after her murder early in the series. That murder, committed by Redd White, occurs during her second case with Phoenix Wright, whom she had taken on as a mentee. Even after death, Mia remains deeply involved in the story: she is repeatedly channeled through Maya and later through her cousin Pearl Fey to assist Phoenix in court, offering guidance and critical insight during crucial trials. Her backstory is explored extensively in Phoenix Wright: Ace Attorney – Trials and Tribulations, which reveals that early in her career she defended Phoenix himself on a murder charge and exposed the true culprit, Dahlia Hawthorne. That same case also uncovered that Dahlia was responsible for the death of Mia’s first client, Terry Fawles, and for poisoning Mia’s then‑colleague and love interest, Diego Armando. Mia’s key relationships include her mentorship of Phoenix, her close bond with Maya, her fraught connection to Dahlia, and her past partnership with Diego. Throughout the series, Mia’s character develops from a living mentor into a steadfast spiritual guide, remaining a symbol of competence, compassion, and resilience. Her spirit continues to be a source of strength for Phoenix, and she is consistently portrayed as an exceptionally capable lawyer who never loses her composure, even in the face of her own murder.