One Piece: Under the Throne

"Be careful, kid. Those are very precious experimental subjects. There are only two successful cases of objects carrying the power of devil fruits." Vegapunk felt like his head was about to explode. Leo was getting more and more irritable.

"Stop talking nonsense, old man. This sword has eaten the Bull-Bull Fruit. Apart from the fact that its shape has become a little strange, its capabilities are just so-so. Moreover, the animal fruit is very tough and cannot be damaged." Leo obviously didn't take this thing seriously. Besides, the two of them had been together for a long time and had already figured out each other's habits, so they communicated more casually.

"But old man, the other test subject is really amazing. He uses firearms to carry the power of the porcupine fruit. He can actually have unlimited ammunition, and the bullets he fires have penetrating properties. Doctor, I'm very interested in this technology. Can you teach me?"

"That's easy for you to say. I can teach you, but you just need to get me an animal-type devil fruit." Vegapunk said unhappily. Soon, everyone gathered in Vegapunk's laboratory. They stared at the Ox Sword, which was obviously a straight sword, but now it looked like a trident.

"What the hell is this Vegapunk?" Judge picked up the bull sword with a look of disgust.

"It's obviously a sword that has eaten a devil fruit." Vegapunk replied seriously.

"You know it's a sword, and you even fed it a devil fruit? What's its use? Can this thing be exchanged for an animal-type devil fruit?" Obviously, Judge was very dissatisfied with Vegapunk using precious materials for this research.

"Mulusai, can't you see how great it is? It breaks the barrier of life, objects take on the power of the devil fruit and gain life."

Seeing that the argument between the two began to escalate, Stussy interrupted and asked, "Doctor, if it is a superhuman fruit or a natural fruit, can it be fused with an object?"

"Not yet. This is a product of bloodline factor technology. Currently, only animal-type devil fruits can do this. Natural and superhuman types don't have soul feedback, so they can't fuse with objects."

The question that Stussy asked was also what Leo was concerned about. It was of little use for an object to eat an animal-type devil fruit, but if an object could eat a superhuman-type devil fruit, wouldn't it be possible to create magical items?

Stussy looked at Vegapunk helplessly, "Well, Doctor, even though it is a great discovery, its practical usefulness is too low. I don't think it's necessary to study it in depth."

This shows the difference between Dr. Vegapunk and others. Vegapunk can explore the scientific path regardless of cost and is a true pioneer. Judge needs technology that can serve his ambitions and pays more attention to the biological transfer of bloodline factors, so he is angry that Vegapunk wasted the devil fruit on useless experiments. Stussy pays more attention to the practicality of research results. In her opinion, the devil fruit produced by a sword is no different from a toy. As for Caesar and Quinn, they are not interested at all.

Seeing that everyone was discussing the Oxford Sword, Leo whispered, "Maybe there is a way to improve the practicality of this research." Suddenly, several people became quiet and turned to look at Leo.

"You can try to let other objects eat fruits, for example, let the cloak eat flying animal fruits, then it can take people flying. If we continue along this line of thought, wouldn't it be possible for a person to possess the abilities of many animal-type fruits at the same time? There is another possibility. I don't know if you have heard of the spirit of the ship. It is said that the ship gave birth to a soul. What would happen if the spirit of the ship ate the superhuman or natural type? Maybe we would get a ship with super powers."

Leo's words made the others look at each other in bewilderment. They had to admit that this guy had indeed provided a broader idea. After thinking for a while, Vegapunk spoke first, "The conditions for proving your second hypothesis are too harsh, so you can put them aside for now. As for the first one, it is still feasible, as long as you choose the appropriate animal-type fruit." The others continued to discuss Leo's idea, and the final conclusion was to temporarily seal up the research.

However, after this discussion, Leo clearly left the impression on others that he had an active mind. The good thing was that in subsequent exchanges, everyone began to pay attention to Leo's opinions.

After the meeting, life returned to normal. The work of an assistant depends on practice makes perfect. After Leo got used to it, he could spare a lot of time every day. He finally had time to study what he wanted. Ever since Vegapunk showed him the transformable mechanical armor last time, Leo had the idea of ​​developing his own vehicle.

However, it needs to be redesigned because Leo's mecha must be used in combination with the fruit power. This was also Leo's original idea. The moment Balkimo saw the blueprint, he decided to adopt a power system based on the fruit power and supplemented by scientific and technological power, and then rely on this power system to reach the ceiling of the combat power in the pirate world.

That day, Leo sat in front of the experimental table, fiddling with a ball of water that kept changing its shape with one hand, and carefully drawing a blueprint with the other. He had already disassembled the transformable mecha made by Vegapunk, and after carefully studying each part, he began to draw the blueprint of his own mecha.

Vegapunk walked into the lab a little later, glanced at Leo who was distracted, frowned and said, "If you want to draw, just focus. It's not like you are working while playing."

Leo didn't care: "Doctor, I'm not playing, I'm training my water control ability. I want to use sea water to simulate a mecha."

"Quinn is right. You are a heretic. Only machines made of machinery and gears are men's romance. What's the point of you using your ability to simulate it? Besides, can a mecha made of water be used?"

Hearing the doctor's rebuke, Leo did not refute, but just raised the corners of his mouth slightly: "Doctor, I'll show you something fun." After that, he saw two streams of water floating out of the water tank next to him and connected with the water in Leo's hand. The following changes made Vegapunk's eyes widen, and he saw that the color of the sea water gradually changed from light blue to dark blue, and finally even reflected a metallic luster.

After doing all this, Leo motioned for Vegapunk to come forward and check it out. The doctor couldn't wait any longer and rushed to the new substance and exclaimed in amazement: "This is... seastone? And the purity is not low. How did you do it?"

Hearing this, Leo was somewhat proud: "Of course I will use my fruit ability. The seawater contains a small amount of seastone factors. I can easily extract the seastone factors with my ability, and then concentrate and solidify them into the shape I want."

"You mean you can use seastone instead of metal? No wonder you want to practice using seawater to simulate mechanical parts. Your fruit ability is really amazing. You can even do this kind of thing. I thought you were a nature type before."

"I can't transform into an element." As Leo said this, he waved towards the ball of seastone, and the latter floated directly back into his hand.

Another half a month passed, and Leo was able to simulate all the mecha parts, and began to try to assemble them. After the mecha was completely assembled, he used the power of the fruit to convert the mecha made of seawater into seastone material.

When it was finally completed, Leo almost jumped up with excitement. This was simply amazing. If the doctor developed the Iron Man Mecha MK5 (portable), then what Leo made using the power of the fruit was the Iron Man Mecha MK50 (super nano armor).

This step is not considered complete. The reason why Vegapunk's laser cannon is more powerful than his is because of the different charging methods. The charging method used by Leo is too inefficient, so he must find alternative energy sources.

So Leo thought of Iron Man's Ark Reactor, which would be a stable and efficient energy source. However, a new problem arose. Although Leo knew what the Ark Reactor was, he was helpless about how to build it, so he had to ask Dr. Vegapunk for help again.

"What is the Ark Reactor? Where did you get this weird knowledge?"

Leo had to try hard to recall his memories of the Ark reactor and told Vegapunk about it verbatim. The words most mentioned were ring, vacuum, magnet, coil, etc. Finally, after Vegapunk finally understood what nuclear fusion was, he began to make it.

The technology tree in the One Piece world is really polarized. There are cannons and flintlock rifles that use black powder, as well as future technologies such as Pacifists and Seraphs. Leo thought that the Ark Reactor would take a long time to develop, but Vegapunk completed it in less than a week. When the doctor threw the shiny energy core to Leo, he was already shocked.

"You really made this thing?"

"Humph, it's not something particularly complicated. Besides, this thing looks a bit like the technology left behind by a huge kingdom."

"Giant kingdom?" Leo was a little surprised. He didn't expect that Vegapunk already knew about the gigantic kingdom.

"Um... just pretend I didn't say anything just now. Stop talking nonsense and just install it and try it out." After being reminded by the doctor, Leo no longer had the heart to talk nonsense. He condensed the seastone armor again, and then pressed the energy core into the groove on his chest.

Leo's eyes sparkled with excitement: "Doctor, I will definitely become the Tony Stark of the Grand Line."

"Who is Tony Stark?"

"Uh, a top scientist who is a bohemian and womanizing person."

"Impossible!" Dr. Vegapunk jumped up like a cat whose tail was stepped on.

Leo: “?”

"I've worked so hard but I don't even have a woman. Scientists are supposed to be lonely. Tell me, why can he be so romantic? Tell me, can you tell me..."

Vegapunk kept chattering away, but Leo didn't hear a word he said. He was so shocked at this moment. He didn't expect that you, Doctor, were this kind of person.