Five years passed in the blink of an eye. During that time, Qingyun traveled throughout the shinobi world with Tsunade, Kushina, and Miroku, experiencing the customs and cultures of its many regions.
The several technological countries to the west, in particular, showed the four of them a very different landscape from the shinobi world. If the shinobi world could be compared to the eighties, when technology was gradually entering people's lives, then those technological countries were like the twentieth century, an age when technology flourished and every household owned all kinds of electrical appliances.
Moreover, their technology was not limited to the many conveniences of daily life. The Technological Weapons they produced were also extremely powerful, almost comparable to an all-out strike from a Kage-level expert.
In those technological countries, Qingyun used threats and incentives to recruit several top scientists into his camp, having them research the Flying Fortress's various technologies alongside Sanzu Amado.
With the more precise equipment imported from those technological countries and the immense energy of the Gelel Stone, five years of research had completely transformed the Flying Fortress. It now boasted all kinds of high-tech energy cannons and clones virtually indistinguishable from ordinary people.
There were also the various sealing jutsu Kushina had laid throughout the Flying Fortress in her spare time. It was fair to say that even an expert at the Half-Step Six Paths Level could not hope to breach the Flying Fortress alone.
Not only that, but the Flying Fortress's ability to withstand pressure had already met the basic requirements for interstellar travel. Some time earlier, following the coordinates Qingyun had provided, Sanzu Amado and Kabuto Yakushi had successfully flown from the shinobi world to the devastated moon without encountering any trouble along the way.
Even the various turbulent currents in Interstellar Space