Densetsu Kyojin Ideon

Humanity’s pursuit of knowledge leads them to the planet Solo, where they find mysterious remains of a long dead alien civilization, including the 3 part super robot ‘Ideon’, and a powerful warship. Using these, the Earthlings sent to investigate the ruins defend themselves in their constant conflicts against powerful aliens called the Buff Clan, who are in pursuit of ‘Id’, the mysterious energy that powers the Ideon.

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After colonizing the planet Solo of the Andromeda galaxy, earthling scientists uncover ancient mechanisms built by a lost civilization from long ago. They name this vanished culture the Sixth Civilization as it is the sixth example of intelligent alien life the human race has encountered. What the earthlings do not realize, however, is that they are soon to encounter the seventh: the Buff Clan, humans from a world other than Earth who have come seeking a legendary power source known as the Ide. Fortuitously, just as first contact with the Buff Clan turns violent, the earthlings discover that the mechanisms of the Sixth Civilization can combine to create a giant mecha called Ideon powerful enough to protect them. But is Ideon in fact the power source of legend, and what is the extent of its might? The earthlings can only hope to discover the answer before it is too late.