Scientific Explosion

Alright world building time, pay attention. I had to make my own canon for the world in order to allow JoJo and Dr. Stone to work together easier, so this is what I came up with. Its not to long and more of a summery, so don't worry about it getting to complicated. Again, I know history fairly well, but only to the extent that it is taught in American school, I haven't taken any extra classes on it so don't count on all of this sounding remotely accurate or including all of the details that it should have.

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In part two of JoJo's Bizarre Adventure, Joseph Joestar fights a Nazi soldier after the soldier and his men released a pillarmen from the stone. He won of course, however, only with the sacrifice of the Nazi soldier. This would have been the end of it, but the world of JoJo is vastly different from earth in more ways then just hamon, vampires, pillarmen, and stands. It also happened to be far more advanced in certain branches of science.

A few of said branches of science happened to be the field's in which the JoJo Nazi's excelled in. These were engineering, biology, physics, and anatomy. This is clearly shown when the Nazi that had sacrificed himself returns as a cyborg with guns stored in almost every corner of his body.

Another organization that had levels of scientific knowledge similar to this was the Speedwagon foundation. These two powers played a significant role in the defeat of the remaining pillarmen and Kars, a literal god. They were still this helpful despite them having a main character on their side, and not just any main character, Joseph Joestar. Yet they were still able to be a deciding factor in the battle even with Joseph on their side. This proves that JoJo's science is far above the Earths science by a few dozen years.

With technology of such power, why wouldn't Xeno study it to its highest degree? The hand of fate also added this technology in to the Dr. Stone canon world during its world war two, however it stayed active during that time to make sure that the war went as it was supposed to as there were no Joestars in this world to help combat the German Science, so it had to make sure that Germany still lost despite its power.

It did this by making the Japanese not join the war and instead focus on developing weapons and their own sciences. During that time, Japan was originally trying to take over their region of the ocean and the land in and around it, however the hand of fate changed this. It used its fate magic to forcefully change the ambitions of the Japanese leaders. With this happening, Japan never became Germany's ally, it never challenged the U.S and it ended up prospering in its scientific ability to such a level that it reached beyond what was seen in JoJo's.

Instead of staying idle like it very well could have, Japan shared a few of its scientific findings with the rest of the world, allowing them to develop weapons that were on par with the Nazi's. So instead of getting a bad reputation during the war for helping Hitler and losing two cities to nuclear bombs, Japan became a type of hero to the rest of the world and earned a lot of respect from other nations.

This would have changed a lot of events leading up to modern day, however, like it was stated earlier, that hand of fate was very active during this time. So it made sure that the rest of the future events stayed relatively the same, with the exception of Japan becoming like Wakanda and possessing overpowered scientific ability and leading the worlds scientific advancements in every way, including them being the first to the moon this time around. The Hand of Fate also changed their leaders moral values slightly so that they wouldn't go crazy with their new scientific power.

But, even with all of this scientific advancement, they still couldn't fight the petrification, and ended up as stone.

This would have been the end of the changes, however this world didnt only have a super power level Japan, it also had two insanely talented scientists. These two were Senku and Xeno of course, and they studied the science of Germany and Japan until they bled. They had reached levels far above what is shown in the manga because of this, allowing them to have the knowledge to easily alter their bodies to add mechanical limbs, even in the stone age.

Senku wasn't to fond of this and preferred to use the more everyday versions of the new science instead of making himself into a robot man. Xeno however loved this idea, and immediately began altering himself as soon as he had the materials and tools necessary. He would have done this before the petrification, however adding weapons to every part of the body was frowned upon and illegal, especially in richer and more peaceful countries, like Japan, England, the U.S, Canada, and some others.

But now he could do whatever he wanted as everyone that enforces the law is a stone statue right now, and he was the most intelligent being on the Earth that was alive, so no body except Raijin, Freddy, Liam, and Asami could stop him, to his knowledge.

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Hundreds of bullets flew into Asami at high speed, giving her a few wounds. She was able to deflect most of the bullets, but there were a few she couldn't and ended up getting hit by them, leaving shallow wounds that healed extremely fast due to her hamon, already powerful body, and the parasyte.

She jumped up into a tree and shot out a tentacle, trying to get a little more time to heal before Xeno attacked her again. However, she was still a parasyte that valued survival over other more practical skills, so she didnt know how to utilize the overpowered fighting sense Asami had developed.

She didnt anticipate that Xeno had thrown a mechanical trap onto all of the trees in his view the second he noticed an enemy.

The second she landed on the tree, a small metal box that was stuck to the tree opened up and revealed a hand, which grabbed onto her leg. She tried to pry it free, however failed after less then a second of trying as Xeno was in front of her again and had his backpack finger gun pointed at her. The hand that was attached to his backpack made itself into the shape of a gun and aimed at her head.

Xeno looked don't on her somehow, despite being beneath her, and smiled. He then put his hand up and pointed at her as he said, "Bang."

Asami got ready to catch a bullet as she turned her head into multiple tentacles that had the tips turned to steel blades. She then reached out to grab the projectile as she prepared herself for the impact of a bullet. Unfortunately for her, it wasn't a bullet.

She had split up her face into tentacles in order to grab the bullet, meaning that her eyesight was disabled for a split second. This left her blind to what Xeno was really doing. Unlike what she expected, the hand didnt shot out a bullet from the finger, instead it quickly turned into a fist and changed into a long tube.

After that Xeno easily aimed it again and shot it at her, all of this happened in less then a tenth of a second. So, instead of finding herself holding a bullet, she found her tentacles grasping onto a grenade.

"What?!" She yelled instinctively, not knowing why as the parasyte didnt know what that meant. But, before she could drop it, it blew up.

She barely had time to create a steel plate around her head before it blew up, which sent most of the tentacles flying and blood gushing out of multiple parts of her head. She started breathing faster, trying to recover, however before she could, six more of those black boxes were flying at her.

Each one of them opened up and grabbed some part of her, restraining her on all of her limbs, her torso, her neck, and the remaining tentacles. All of these thing were now being held down by the box arms on the tree.

"Did you really think that I wouldn't have trapped everything? Come on! Its a predictable move, even for a savage animal like yourself!" Xeno said as he walked toward her, and taking out yet another gun.

Asami had to think quick if she wanted to escape, and that is exactly what she did. It turns out she still had some luck left in her as she remembered that she was attached to a tree. She breathed in with as much intensity as she could muster and directed the hamon at the tree. Seconds later, the tree started to crackle with hamon itself, until it began to rapidly wither.

"What the hell?!" Xeno shouted as ran toward Asami, trying to stop her before she could do anything.

Unfortunately, he was to late. The tree finished withering and became a dried up weed next to her as she healed all of her tentacles and broke the boxes. She then looked at Xeno while her body flickered with hamon.

"Did you just use hamon to force that tree into giving you its own? It sounds similar to the ability that Raijin showed me where he could control the minds of others, but I didnt think it worked on plants! Damn It!" Xeno said as he retreated and started trying to figure out how to kill her.

Asami didnt allow this however as she dashed to another tree and started to take its hamon as well. She looked down and realized that she could take it from the grass as well, and that's exactly what she did. She started sucking hamon out of every living thing she could get into contact with.

This was a move the parasyte had created after it took over Asami's body. It allowed her to force the plants that she was in contact with to give up their ripple, doing more then just making them age, but instead killing them instantly.