Five years earlier, while fighting the alien force called the Mimesis, Goh Saruwatari, pilot of the robot Dannar, first met Anna Aoi. On the day of their wedding, the ceremony is interrupted by another Mimesis attack. As Goh battles the alien threat, Anna discovers a top‑secret robot, the Neo‑Okusaer, and uses it as a last resort to rescue her fiancé. In that instant, Dannar and Neo‑Okusaer merge, forming the powerful robot Godannar.