Misa Hayase, born March 3, 1990, into a Japanese family boasting a century-long military heritage, was the sole daughter of Admiral Takashi Hayase. Her childhood amidst the Unification Wars centered on her bond with Riber Fruhling, whose path into military service she vowed to follow. This dedication propelled her to graduate first in her class from the UN Spacy Officers' Academy. Riber's death during the destruction of the return fleet from Mars Base Salla profoundly shaped her, cementing her prioritization of duty above personal life. Commissioned as a First Lieutenant, she served as bridge coordinator aboard the SDF-1 Macross during Space War I. Initially stern and strictly by-the-book, her intense sense of duty frequently clashed with impulsive colleagues like Roy Focker and Hikaru Ichijo. Tensions with Hikaru heightened when he accidentally called her "oba-san" (aunt/old lady), referencing their mere two-year age gap. Her analytical prowess yielded critical tactical innovations. She conceived the unconventional "Daedalus Attack," utilizing the SDF-1's detachable arm, which became a standard tactic for Macross-class vessels. Imprisoned alongside a Zentradi reconnaissance team, she identified their lack of cultural experience as a exploitable vulnerability, later leveraged through human music and emotions. Her relationship with Hikaru evolved from friction to interdependence. Shared ordeals – captivity on a Zentradi flagship and entrapment during a Macross transformation – fostered deep mutual understanding. Confined together, they shared vulnerabilities: Misa revealed her enduring grief over Riber, while Hikaru confessed his struggles with Lynn Minmay. This marked a turning point, though both initially faltered in expressing their deepening feelings. After temporarily departing for Earth to advocate for peace negotiations, Misa reunited with her father. He urged her to remain on Earth, a directive she defied by returning to the SDF-1. Post-war, she reconciled her military identity with personal desires, marrying Hikaru on October 10, 2011. Their daughter, Miku Ichijo, was born in 2013. Promoted to Major, Misa assumed command of Earth’s first long-distance colonization vessel, the SDF-2 Megaroad-01. Lynn Minmay joined the mission, maintaining friendship with the couple. In July 2016, near the galactic center, the Megaroad-01 vanished without trace during a fold maneuver. All contact ceased, and the crew was declared missing. Speculation about the disappearance cites investigations into anomalous transmissions or a potential black hole encounter, but no official cause was ever confirmed. Her legacy persists in later Macross narratives through characters like Catherine Glass and Sheryl Nome embodying her traits, and the enigmatic "Lady M" in Macross Delta hinting at her enduring influence.