Also known as: ジュラル星人
Aliens from the planet Jural, possessing scientific capabilities 500 years more advanced than Earth's. Their name is likely derived from the alloy "duralumin." ("Du" is pronounced "Ju" in Japanese)
Originally living peacefully on Jural, they faced extinction for unknown reasons. They targeted Earth as a potential migration destination, intending to conquer and colonize it.
Their appearance consists of a purple-colored body with a single eye. They possess tentacle-like limbs that can extend and retract freely. They also have a mysterious mark on their chest.
Both male and female forms appear to exist.