Judging by the Pirate World's ecosystem, this world should once have had far more extensive continents. Wars or some other cause must have turned it into what it was today.
Other than summoning beasts, the Shinobi World basically had no particularly complex ecosystem. The Tailed Beasts came from the Ten-Tails and were not creatures native to the Shinobi World. If they were allowed to roam freely, they would instead cause considerable damage to its ecosystem.
From a certain perspective, the First Hokage's capture and sealing of all the Tailed Beasts had also helped the Shinobi World.
The Shinobi World's environment was already fragile. After being ravaged by the Ten-Tails, the fact that it could slowly recover without collapsing completely was already quite remarkable.
There was no need to think about it—the nine Tailed Beasts must have had astonishing appetites, and they would not die.
Given the Tailed Beasts' temperaments, they certainly would not endure the torment of hunger. Even if they did not need to eat, they would still consume food in huge quantities.
Moreover, conflict between the Tailed Beasts and humans was inevitable. Such enormous creatures were bound to clash with human civilization.
The moment the Sage of Six Paths created the Tailed Beasts, he had doomed them to suffering.
After all these years, the Tailed Beasts had gradually come to understand this and begun cooperating with their Jinchūriki.
Experiencing human lives alongside their Jinchūriki might have been the best choice for the Tailed Beasts.
As for Boruto forcibly writing off the Nine-Tails and forcibly weakening Naruto, it was truly hard to put into words.
Once one reached the Golden Core stage, one could fly through the air under one's own power without relying on magical treasures.
In the Pirate World, gaining control of the skies offered a tremendous