This statement was clearly a well-known piece of nonsense, but the effect it produced depended entirely on who said it.
If it came from those bragging pirates in a tavern, then obviously it was nothing more than common knowledge, useful only for showing off to pirates who did not know about it.
But if Sengoku said it, then everyone had to start getting afraid.
And if someone like Trafalgar Law—a brilliant doctor and researcher—said it, then the matter was worth taking seriously.
"What do you mean?" Leo asked, his expression turning slightly grave.
"Zoan Devil Fruits can be manufactured." Trafalgar Law shook his head. There were still far too few samples. On Leo's side, there were only a few Zoan Devil Fruits: Dalton's Ox-Ox Fruit, Chopper's Human-Human Fruit, Pierre's Horse-Horse Fruit, and Morgans.
If the Leopard-Leopard Fruit and Giraffe-Giraffe Fruit Leo had eaten were included, then they actually had quite a few Zoan Devil Fruits. However, Leo had eaten both of those Fruits, so within the Revolutionary Army, Paramecia Devil Fruits now greatly outnumbered Zoan Devil Fruits.
"The number of samples is severely insufficient. Right now, all we know is that certain factors within Zoan Devil Fruits can be artificially created. And I have a bold hypothesis: Zoan Devil Fruits were artificially created. They wanted to use humans for experiments to verify the process, then eventually move on to manufacturing Paramecia Devil Fruits."
"They are conducting modification experiments on Zoan Devil Fruits by imitating Paramecia or Logia Devil Fruits, then releasing the results."
"So that's how it is. No wonder..." Leo recalled the One Piece manga he had read before. Caesar, Vegapunk's assistant and the user of the Gas-Gas Fruit, was a scientist shared by the Donquixote Family and the Kaido Group. With only a few assistants and the theoretical