During a clash with extraterrestrial foes called the 'Mimesis' half a decade earlier, pilot Goh Saruwatari encountered Anna Aoi for the first time. Fast forward to their wedding day - festivities are rudely disrupted by a renewed Mimesis attack. As Goh grapples with the invaders, Anna stumbles upon the clandestine 'Neo-Okusaer' mecha, deploying it as a final gamble to rescue her beloved. This act leads to the fusion of Dannar and Neo-Okusaer, birthing the formidable mecha entity 'Godannar'.