(Heartfelt thanks to 'HJAkeno', 'Gang Gang Gang', 'Q Yongjiang Yiku Q', 'Wufeng Haotian', and 'Classmate Pangpang' for their rewards!)
Fairy Tail was indeed no longer what it had once been.
After Kisara took over as Guild Master three years ago, she had been laying the foundation for Fairy Tail's growth with Natsuyo's assistance.
First, Kisara quietly forged a large amount of varanium into Monoliths, creating a city exclusively for Fairy Tail and relocating the entire guild there.
Then, Kisara announced to the world that Fairy Tail had developed an inhibitor capable of completely suppressing the activation of the Gastrea Virus, preventing Cursed Children from being eroded by it and ultimately turning into Gastrea. The news shocked every nation in the world.
As a result, Cursed Children who did not want to become Gastrea naturally did everything they could to come to Fairy Tail and join it.
Moreover, Fairy Tail dispatched large numbers of travel groups every year to bring Cursed Children from nations around the world into Fairy Tail.
Cursed Children were regarded as monsters in every country, so at first, no one cared about their disappearance. This allowed Fairy Tail to take in a great many Cursed Children without difficulty.
Gradually, as Cursed Children from every nation gathered in Fairy Tail one after another, those countries began to realize that they had lost a huge portion of their own Cursed Children—effectively losing a great deal of strength that could fight against Gastrea. By the time they were astonished, there were already very few Cursed Children left within their borders.
Only then did the major nations hurriedly begin gathering up the Cursed Children within their borders, sharply reducing the number flowing into Fairy Tail.
However, even so, many Cursed Children still made their way to Fairy Tail with the help