Premise:
In 2042, alien threats known as the Mimetic beasts (擬態獣, gitaijū) laid waste to Japan. During a final battle against the Mimetic beasts, Goh Saruwatari defeats the alien “boss” and saves his future fiancé, Anna Aoi, with his robot, the Dannar.[7]
Now, on their wedding day, the Mimetic beasts emerge after five years of tranquility. Goh and Dannar are called to action, forcing Goh to leave Anna at the altar.
As Goh struggles in his battle against the Mimetic beast, Anna stumbles upon a sealed robot known as “Neo Okusaer”. She is able to activate and pilot the Neo Okusaer to save her “husband” by merging it with the Dannar to activate the Godannar’s Twin Drive.