Abraxas is a planetary member of the Galaxy Federation that was once the home of Federation counter-terrorist Jan Sauer. It is also where the events of Xenosaga: Pied Piper take place, 100 years prior to Episode I. Abraxas is later renamed "Michtam".

In T.C. 4667, on the planet Abraxas in the demilitarized zone, a meeting was held in order to improve relation between the Galaxy Federation and the Immigrant Fleet. And there, in that place of discussion inside virtual space, an incident occurred in which the goodwill ambassador and diplomats were imprisoned.

The Galaxy Federation Police 1875th Special Ops Command dispatched a special investigation unit to the planet Abraxas with Jan Sauer as its captain.

The name that came up as a suspect was Voyager. Besides that codename, nothing about him was know at all. He was a mass-murderer who had committed on heinous crime after another, targeting women and children.

When Jan arrived at the scene of the crime, he initiated a dive into the virtual space and hurried to the location where the ambassador was being held.

Near where the diplomats were being held, they came under attack by macrophages. That attack resulted in the deletion of one of Jan's comrades, Erich Weber.

Being deleted in virtual space means death in the real world as well.

At great cost, Jan's group arrived at the diplomats' location. But what they saw there was a group of children performing self-deletion and ending their own lives.

After the incident, the special investigation unit rejoiced when Erich miraculously came back to life. But the doctor who visited them--Sharon Rozas--declared that Erich's recovery was unthinkable under normal circumstances.

Without finding even a single clue toward solving the ambassador kidnapping incident, anew mass-murder incident occurred. The target this time was the designer children known as the Salvator's Children. The children had been embryos in a nursing plant,genetically modified and intended to be raised for important positions in government. Voyager was once again suspected, but the special investigation unit was unable to confirm it.

Not long after the incident at the nursing plant, a party sponsored by the Torres Foundation was planned to be held inside the U.M.N. Even the head of the Immigrant Fleet, Patriarch Julius himself, was to be invited to this large-scale party.

Wary of terrorism by voyager, the members of the special investigation unit stood guard. Suddenly, Irene Torres, the president of the Torres Foundation, suffered a seizure. She spoke a series of mysterious words and then collapsed.

Certain the this incident was Voyager's work, the special investigation unit moved to catch the perpetrator in a trap.

Jan's team caught up to the suspect,Klaus, but he killed himself before their very eyes.

To obtain information about the incident, Jan pushed aside Sharon's objections and performed a dive into Klaus's brain.

Gazing into Klaus's memory, Jan's group learned that Klaus had been collecting something called endorphin programs and had been doing so in preparation for meeting someone.

Jan once again visited Sharon's residence to hear the results of her investigation. Sharon told him that the endorphins he had obtained had the effect of stimulating activity in a certain part of the brain.

Sharon also told him that both the diplomats and those who had provided DNA to the nursing plant had been pure-blooded Abraxas natives.

The people of Abraxas, and all descendant of the Immigrant Fleet, are born with that part of their brain devolved .

Sharon, too, had the blood of the Immigrant Fleet in her veins. She told Jan that the citizens of Abraxas had once been called the People of Zohar.

At the end of numerous difficult battles, the special investigation unit finally discovered Voyager's identity. However, the person they found was not the hideous monster they had expected, but someone they had never even imagined.

Voyager said that he had the power of the Zohar, and that to fulfill his contract with U-DO he must gather large amounts of endorphins.

Jan was certain from Voyager's Words that his next target was the Pilgrimage Meeting, where large numbers of Abraxas citizens would gather.

Sharon and Joaquin, too, were participating at the cathedral where the Pilgrimage Meeting was taking place.

The Zohar began to glow, as if responding to the prayers of the participants. The space around it turned to crystal, and the participants disappeared, one after another.

Voyage and Jan faced off before the awakening Zohar.

To fulfill his contract with U-DO, Voyage ended the lives of his final targets--Sharon and Joaquin.

For the first time, Jan saw Voyager's crime with his own eyes. The bodies of Sharon and Joaquin lay before him. His world overcome with despair, his fight with voyager entered its final stage.

But Jan stood no chance against Voyager the Testament. As his only method of resisting Voyage's will, Jan ended his own life.