In 1961, the first-generation Subaru Sambar was a truck and van based on the Subaru 360 platform. The first generation Sambar was a commercial vehicle with a rear engine layout and four-wheel independent suspension, a unique and costly structure. The Sambar boasted good traction performance characteristic of the rear-engine layout and was strong on rough unpaved roads common in Japan at the time of its launch, and combined with the ride comfort provided by the four-wheel independent suspension, it won enthusiastic support in the Japanese market. The Sambar's unique layout for a commercial vehicle was carried over through a series of model changes, and its high durability earned it the nickname "the Porsche of farm roads. This is the sixth-generation Sambar van. It inherits the rear engine layout and four-wheel independent suspension from the first generation, and offers a high level of comfort, excellent load capacity as a commercial vehicle, and good handling. Subaru discontinued production of the sixth-generation Sambar in March 2012, and the seventh-generation Sambar, which went on sale in April 2012, is an OEM model supplied by Daihatsu HIJET (10th generation). At the same time, this meant the abandonment of the unique mechanisms inherited from the first-generation Sambar. Therefore, the 6th generation Sambar, the last model produced by Subaru, is a rare model that is loved by enthusiasts as a custom base or as a private car, even though it is a commercial vehicle.

The mysterious object "Zohar" was discovered in Lake Turkana, Kenya, in 20XX A.D., proving that it has existed since the creation of the universe. For some reason, mankind was forced to abandon the earth sphere, and under the governance of a management organization called the "Cardinal Assembly," the power hidden in the "Zohar" was harnessed, and after an extraordinary number of years, a "Federation of Star Clusters" consisting of approximately 500,000 planetary nations was formed and a new prosperity was about to be gained. On the other hand, the survival of the human race itself was being threatened by the offensive of an unknown life form called "Gnosis," which could neither be called a living organism nor a weapon. This is the story of those who were led to a strange fate by "Zohar.

A girl who plays a key role throughout the Xenosaga series. A female combat android developed by the interstellar conglomerate Vector. In this age of synthetic human <Realian> technology, she is a rare being composed entirely of mechanical parts. KOS-MOS is the generic name for the combat system developed for the Gnosis anti-pilgrimage fleet, and she does not have a name of her own. In everything she does, she gives priority to the three principles of logic, establishment, and mission, and she unconditionally protects her developer, Shion. In order to communicate smoothly with others, a "simulated personality OS" has been implemented. It has the name of "kosmos".