The dawn of transponauts arrives after the fifth World War. Shift-Space Frontier sends its assigned Troubleshooter Emeritus from Earth to the hidden planet Amarantos to sort out a violent supply issue. He has the same pay and responsibilities as an active Troubleshooter, but with slightly more wiggle room to accommodate his half-alien daughter. One such benefit is the equipment to become the multi-purpose armored fighter Galaxy Beast, which he'll inevitably need once again.