Faust's Saber Dolls still live in Japoness, although as they also continue to develop emotionally, begin to feel restless and desire to return to their master.
In contrast to the care-free lifestyle of the marionettes, Lorelei begins to feel stifled by her over-protected existence within the walls of Japoness Castle, and begs Otaru to help her escape for a day.
Otaru and the marionettes manage to succeed in smuggling Lorelei out of the castle, but their act of goodwill backfires when she is kidnapped, apparently by former members of the Gartland regime.
While Otaru and the marionettes were preoccupied with Faust, Doctor Hess and a member of the Xian government had used the opportunity to scan Lorelei's brain for information, although they escape without revealing their true purpose.
This time, instead of Lorelei, it is the marionettes’ brains they attempt to scan, but a security measure within the maiden circuits kicks in and creates feedback within Doctor Hess’ machine, causing a tremendous explosion.
Otaru begins a desperate search for the girls, greatly hampered by the fact that he has been accused of causing the explosion in Doctor Hess's lab and branded a terrorist.
It turns out that only the marionettes have the power to communicate with the Mesopotamia's computer systems, which he needs in order to gain access to the wormhole charts in its memory that will allow him to return to Earth on board his new ship, The Neo-Mesopotamia.
He was on Terra 2 a century before the Mesapotamia's arrival, part of an even earlier scouting mission called the Frontier Project, whose purpose was to find a habitable planet to ease Earth's pollution and over-population problems.
His rage and grief at his abandonment drove him to build a ship powerful enough to weather the plasma storms and return to Earth on his own, where he plans on exacting his revenge.
Firmly believing that humanity as a whole is an irredeemable species, he feels no regret for the countless thousands of people on Terra 2 who have suffered as a result of his plans for revenge.
They manage to re board the ship and confront Doctor Hess, only to discover that it does not matter if they defeat him: the Neo-Mesopotamia has been rigged with a massive nuclear device, capable of wiping out an entire planet.
The undaunted marionettes continue to fight against Doctor Hess, but are interrupted as the ship leaves the wormhole's exit to the solar system and are struck by the massive chunks of icy debris that make up the rings of Saturn.
Otaru, crushed by his failure to protect his marionettes, is discovered by Lorelei and Faust, who take him to a hidden cave where the first three female clones have finally awakened.
Hanagata goes on to write a novel about Otaru and the girls’ adventures; the Saber Dolls find jobs to help Faust fund research into the mysteries of Terra 2, so that mankind may some day truly make the planet their own.