Tên: ゼノサーガ , Cội nguồn, Xenosaga
Năm: 2005
Tập: 12 Episodes
Thể loại: Người máy, hành động, giả tưởng, chiến tranh,

Nội dung:
This series is based on a game by Squaresoft and Namco. The first game related to this is Xenogears, the story of which occurs a couple hundreds of thousand years after Xenosaga.

The story starts a couple thousand years after humans have left the Earth. Technology is now very advanced, cyborgs that have human emotions, wireless network everywhere in the universe, huge robots ( gears ), advanced weaponry, warp gates, everything. However, humans are also faced with a new enemy: the Gnosis. The Gnosis are an alien life form. Little is known about them and their intentions. The hardest part about fighting them is that most objects can't even touch them. This means that laser beams, bullets, bombs, etc go through them without doing any damage. More advanced weapons are being developed, however.

One of these weapons, named KOS-MOS, lies within the ship Woglinde. The story begins when Woglinde just discovered an ancient relic known as Zohar. Mysterious to all, Zohar was going to be transferred to the headquarters of the Federation. Shion, the head of the R&D division of an organization called Vector, encountered a little girl when she took a look at the Zohar. Mysterious to her, the girl left an impression on her as well.

While on their way back, the fleet Woglinde was in got attacked by the Gnosis. It turned out that the Gnosis' objective was the Zohar. Shion encountered a physical contact with one of the Gnosis. A physical contact with a Gnosis usually means certain death in a matter of seconds. Luckily for her, KOS-MOS awakens and came to Shion's rescue. KOS-MOS has a technology caled "The Hilbert Effect" that materialises all the Gnosis, allowing them to be attacked by normal means. Trained for combat, KOS-MOS single handedly cleared an escape path for Shion and Allen, her subordinate.

However, though the battle was concluded, the entire fleet of Woglinde was wiped out, and Zohar was lost. Shion and KOS-MOS are trapped in the middle of nowhere, while a deeper mystery awaits to be discovered.