Five years ago, Goh Saruwatari first encountered Anna Aoi while fighting against an extraterrestrial force known as Mimesis. Today, on their wedding day, the ceremony was disrupted when the Mimesis attacked once again. While battling the alien threat, Goh found himself in a difficult struggle. Meanwhile, Anna discovered a top-secret robot called Neo-Okusaer and used it as a last resort to save her fiancé. At that precise moment, Dannar and Neo-Okusaer merged into the powerful robot known as Godannar.