An unexpected package is delivered to a school boy, Chatan. Chatan opens the box, but there is only an ordinary toy cube inside. However, as soon as Chatan touches the cube, a car-transformation robot appears.

Scott is a part-time student and son of a famous dumpling shop in Zero City, accidentally picks up a geostone from the sky, one day while making a delivery. Albert, is a scientist and alien whose hobby is creating new monsters, to create more kaiju. He targets the geostones and sends his space kaiju to Earth to create space monsters that he has created. Concerned that the Earth is in danger from t...

The one who protects the world by becoming one with the spirits, 'Mask Masters' exists. world. Against the forces of darkness, the new power of the Mask Masters, 'Synostone' together. Unimaginable transformation robot.

There were 12 statues symbolizing the 12 wisdoms to keep the world in peace. However, the evil ‘Muspell’ corrupts the 12 statues into Takers and colors the world with the power of darkness. Now the only hope for restoring peace is the Mask Masters, those chosen by the Mask to protect heaven's wisdom!