Mirahi's origins trace back to the union of the Ronin, a former Sith wanderer, and a witch of the Sith, his lover during the Sith rebellion; Mirahi was Force-sensitive. She was born on Rei'izu, a planet hidden from space, approximately a year following the rebellion's conclusion. Her mother initially nurtured her, but ultimately fulfilled her vow to sacrifice herself to Rei'izu, ensuring its safety for her creations: her daughter and her Sith demons. She merged with the planet itself. Until they vanished, the witch's specters watched over Mirahi, after which the child was left alone with the kyber mirror of Shinsui Temple.
The Traveler, then known as Idzuna, was dispatched to Rei'izu by their Jedi lord, Hanrai, with the mission to eliminate any remaining Sith presence. Idzuna discovered only Mirahi in Shinsui Temple, and chose not to kill her. Instead, Idzuna trained Mirahi in the ways of the Force, specifically the black current and white flare.
The Ronin first encountered Mirahi as a disembodied voice, which both mocked and guided him on his journey. Although she insisted she had never deceived him, he was convinced she was her mother and sought his dead as retribution for his betrayal that led to the rebellion's end.
Mirahi's debut was in Ronin: A Visions Novel, a book published on October 12, 2021. This novel is an adaptation and expansion of "The Duel," a short film episode from Star Wars: Visions that premiered on Disney+ on September 22, 2021.