This is a small theory thread about the significance of the devil fruit eaten by Eustass Kid: The Jiki Jiki no mi. What do you think is Kid’s role in the future of One Piece knowing that he and Law already defeated Big Mom? Well, hear me out for a few minutes.
Law’s and Luffy’s devil fruit had significant relevance in the story. Law’s devil fruit can grant youth and immortality at the cost of the wielder’s life and became wanted for 5,000,000,000 Beri. Luffy’s devil fruit was hunted by the World Government for the last 800 years and is now confirmed as a mythical Zoan-type devil fruit. So what about Kid’s Jiki Jiki no Mi?
I believe Kid’s devil fruit is the 2nd half of the ancient weapon Pluton with the battleship being the first half and is highly wanted by the World Government. Pluton, one of the 3 ancient weapons alongside Posideon and Uranus said to destroy the world made its debut in Alabasta where Crocodile wanted to obtain it. Later on, we cut to water 7 where the World Government sent the CP9 agents on a 5-year investigation to retrieve its blueprints.
The Pluton blueprints were passed on from generation to generation from shipwrights with Franky ultimately burning them in Enies lobby but that doesn’t solve the problem. I believe just like Luffy and Law’s devil fruit, Kid’s devil fruit is highly sought by the World Government for being the 2nd half of Pluton.
Now how does this work you may ask? Let’s cut right to Funkfreed. A live example of a concept Vegapunk made possible. Having devil fruits merge with inanimate objects. In Funkfreeds case, it is a sword that has “eaten” a Zoan-type elephant fruit.
I believe the purpose of building the pluton battleship is two things: One is to maximize the power and potential of the Jiki Jiki no Mi and 2nd it is for the battleship to be engineered in such a way where it ONLY “eats” the Jiki Jiki no Mi.
Kidd has shown brilliant engineering skills. If he can make a RAILGUN with nothing but worthless scrap metal that can not only damage Big Mom but is potent enough where Big Moms conquerors coating cannot deflect it. Can you imagine the sheer destruction of Pluton?
Entire NATIONS would be wiped out in the blink of an eye by the railgun’s maximum power thanks to the technology of the pluton battleship not to mention Islands can be lifted, sunk, or merged together due to the total domination of electromagnetism. The entire world would become one giant playground at the hands of the Pluton wielder.