Synopsis
It is the year 1995. An alien army from the Saar cluster called the Akron has conquered Earth. The planet's cities lie in ruins, and the remaining survivors endure harsh lives in shanty towns and villages. War orphan Kento hides in a cave with his companions to escape bandits. Inside, they discover the secret base of Dr. Earl, an inhabitant of the planet Helios—a world also conquered by the Akron. Dr. Earl escaped to Earth, bringing with him Helios's greatest technological achievement: the super robot Daltanius, whose power is amplified when combined with the intelligent lion robot Beralios. Dr. Earl entrusts the fight for Earth to Kenta, who turns out to be a descendant of the long-vanished Helian royal line.