Each child was trained separately in a range of superpowers that will allow them to fight Mess, their bodies also adapted to the atmosphere of the Flash Solar System making them gain special abilities.

When they finally return to Earth in 1986 to combat Mess, who is now trying to invade it, they use the opportunity to search for their birth parents.

Their goal is to transform its leader Ra Deus into the strongest being in the universe through repeated bio-augmentation.

The Reconstructive Experiment Empire Mess' base of operations is the UFO-like spaceship called Labo.

The Beast Warriors (獣戦士, Jūsenshi) are Chimera-based monsters that are created by Great Doctor Lie Köpflen through his DNA synthesizer.