This is a Kenichi, History's Strongest Disciple, Street Fighter, and Dragon Ball Z Fan Fiction Only.

For those that are wondering this is a birthday present for Hero100100.

Throughout Dragon Ball, there had been many conflicts, many sagas, and wars, since their formation or them getting together the people that were recognized as the Z Fighters, had been the undisputed saviors of the world, several times over, at least to people that knew of their actions.

This group of mighty fighters were not interested in fame, glory, or any sort of financial or material rewards, their main concern was the preservation of life, this group did not only fight the evils that threaten the world, but in some cases, they actually showed these villains the error of their thinking and managed to change their ways so much so they redeemed themselves.

It did not happen often, but those few times that it happened left an incredible effect on the world. Through all these members of the demonic clan had attempted to use the Z Fighters for everything from guinea pigs in experiments to sources of energy to grow stronger, none of their plans succeeded, Towa the princess of Hell and her creation Mira felt that they were simply not strong enough.

Upon learning how the being that called himself Perfect Cell was created, Towa began her most dangerous and most personal experiment in her entire life, she collected the DNA of the world's toughest fighters, perfected, purified, and distilled it to the single most perfect combination, and to his, she added to one of her eggs that had been fertilized using the seed of her creation Mira, who to her was already perfect.

But unlike Mira, this time she grew this lifeform within her own body, she went through nine of the single most life-changing and threatening months of her entire life, many times she came close to dying, but she did not relent, Mira was there with her, helping her every day.

It was her hope that this child would be the pinnacle of perfection and thus be the next Demon King to bring back their clan as the rightful rulers of Hell. She went through the entire nine months and so many horrific hours of pain that it made her think the child would rip itself out of her through her guts and killing her.

The child after twenty-four hours of labor, and screams that would make the most sadistic killer cry for their mothers, the child was born, and Towa named him Fuu. For the first time in her life even when Mira was created, Towa holding baby Fuu in her arms smiled, and felt something she never felt before, motherly love for her child, as she held her child Towa for the first time was a mother.

Her child grew extremely fast, and his education began in full since he was two years old, Mira educated him on physical skills and combat, even though Fuu was often heard telling Mira that such barbaric tactics were simplistic and more than anything causing such boredom it was almost making him cry.

For the first ten years, his mother and Mira taught him everything they knew, and when that proved to be too little for Fuu's intellectual hunger, he began to study on his own. By the age of twelve years old, he had an understanding of the universe, of reality that could match the Supreme Kai, having nothing to read, and bored, he began to watch forms of entertainment from the human world.

The first was a video game that people seem to enjoy enough that they would spend resources to play, and the second was the story of how the weakest character in the show slowly overcame obstacles to become the strongest disciple in that show's recorded history.

It was all he did for the following eight years, study, workout, play that video game, and watch the anime, over and over again, you could say his life was in a bit of a boring cycle, well at least he did, and that is when he realized that the guy that his mother often talked about messing up her plans or stopping one of her schemes, was probably as bored as he was.

In the world he was one of the heroes that saved his world over and over again, but after a while, it was as repetitive as his life, eat, sleep, workout, a major threat shows up, he and his friends defeat the cause of the threat or the threat itself and the cycle repeats all over again, over and over nothing knew about it, nothing else to do. An existence that was as dull as his own, and he began to feel sorry for him.

He knew that this Hero that his mother called Goku and his friends enjoyed a tough opponent, a new challenge, but those were so few and far in between Fuu thought that if it was him he would be in tears, there is nothing, the world offers nothing new. Fuu at least had his experiments, wait, experiments, that is it.

Fuu decided to do something to help the people of Earth, and get to conduct an experiment of his own, the one experiment his own mother considered impossible, the experiment to see if someone could make a copy of their current universe and fuse two others with it creating a brand new universe, but if he did that, he was sure the Supreme Kai of Time and her little minions would not be happy about it.

Well, no matter, this was for a good cause, to help make the lives of an entire universe even better than they thought possible, he began to run the experiment and it took him six years to finally have enough power, the technique, and the Super Dragon Balls all gathered to finally conduct this goodwill experiment.

He first used his technique to fly outside the boundaries of what was called Universe Seven, and using all of his strength made the impossible happen, he created a perfect copy of it, with the Super Dragon Balls he summoned the dragon and told him, to grant everything he had written on a piece of paper, the dragon which was massive, took the piece of paper like he was being handed a piece of tissue to blow his nose into it.

It took him three seconds to read everything and could see no reason why this wish could not be granted. It was unusual even for him to see a member of the Demon Clan make this list of requests but none of them would benefit him at all, it was all to grant things to other people. No matter, the dragon looked at him and told him something this major required time, but his wish will be granted. Fuu was not in any hurry if his wish was granted that instant or in decades from that moment.

In another universe, one that people considered fictional, Kenichi was just returning from his duty as the master of the Ryosenpaku Dojo and a meeting with the Shinpaku Alliance, Nijima was still being a pain, he was obsessed with the notion of taking over the world, and it looks every member of the Alliance to remind him if he tried what he wanted to do he would be no better than Yami, Yomi and Ragnarok all put together.

He entered the side of the Dojo where he and the masters lived, and he realized that the one good thing that happened in his life was the fact that in the end, he managed to defeat his now grandfather in law, his father in law, and married the love of his life, Miu, they even had two children. The youngest being his son Appa, and his daughter Chai, this caused one of the masters of the dojo so happy he was jumping from sheer joy for almost a year.

"So how was your day?" He looked at his beloved wife cleaning her hands on her apron, "Nothing out of the ordinary that space demon is still trying to convince us to rise up and conquer the world, thank goodness the rest of the Alliance is not as dumb as to fall for his excuse, the Dojo was busy as you probably heard, we have over five hundred students, the masters are quite happy with the students they have, do you need my help for anything, my love?"

This cause her to blush almost like she was a teenager again, "No, I was just waiting for you to come to tell you dinner would be ready soon, mind help me get the kids? They are probably still playing that video game Apachai bought for them." He leaned close to her and gave her a quick kiss on the lips as they both walked into the living room to see their kids pick their favorite characters.

Something was not right, has become the grandmaster of the Dojo, made his senses sharper than any weapon Shigure ever had, and he could sense something was happening and it was something horrible, in that second Nijima jumped into the room through an open window and now he was certain something was not just wrong it was something terrible.

"Kenichi my sensors are going nuts, something is crashing into our dimension, but this is insane, come on Kenichi, grab your kids, and Miu let us escape in my mother's spaceship, everything else can wait but we need to go and go now!"

For the space-demon to be freaking out as he is only served as confirmation, but it was a little too late, the outside world began to fade away, and as Miu and Kenichi saw their children fade into thin air, they immediately were in a strange place, two men wearing armor were standing in front of them that was bad enough, but the worst thing was the three of them looked like they shrunk and had the appearance of three eight-year-old kids.

"I told you we should have acted as soon as the dimensions began to distort Kakarot, now we have to explain everything to three traumatized people, who are technically experiencing their second childhood, but no, you had to have another helping of sweet and sour pork stir-fry." The man who was still holding a chicken drumstick looked at the other man.

"Look Vegeta, I was hungry, and this happened during dinner, we managed to at least get these three to the time nest before they faded from existence, that should be something, and how many times must I tell you my name is Goku!" The one that was clearly named Vegeta simply told him his birth name was Kakarot, and no matter what his friends chose to call him did not change that.

That is when the now child form of the grandmaster of Ryozanpaku took a brief moment to take a deep breath and released such a killer intent in his Ki that made the two men in armor stop arguing, "Excuse me, but my wife and I just watched out the entire reality which included our children vanish into nothing, could you to stop arguing for a second and tell us why did we are here, what happened to everyone we cared about, and WHAT THE HELL IS GOING ON!"

That was certainly unexpected, understandable but unexpected, "At least this guy has guts, alright, I will tell you everything that is going on, as a reward for your bravery. I am Vegeta and the guy who is eating the chicken leg is my friend Kakarot, but he would rather have you call him Goku, we are members of the time patrol, and you are currently in a place outside of normal time and space, that we call the time nest."

"For some strange reason, your universe, ours and another one were violently and savagely slammed together in such a way that the three universes merged into one, but this caused the time in all three universes to flow backward as the universes merged together, land, air, water, even planets disappeared as they merged with the same planets in the other two universes. That is why you look like eight-year-olds but in reality, thanks to us pulling you into our time nest we managed to get you here before your memories were erased and replaced with the ones in the newly merged universe."

Miu took a deep breath, "So you mean to tell me the anime my children like is actually or was actually a separate reality, and the reason I watched my children disappear as they did was that time reverse to a point that they no longer exist? ARE YOU MAKING FUN OF US OR ARE YOU OUT OF YOUR MINDS!"

Well, that was to be expected or so the two men in armor though, I mean she just watched her children disappear right in front of her into nothing, there is no way a mother would not be affected by going through something like this.

Nijima was the only one that apparently was not freaking out, he was actually smiling in his creepy way for some strange reason, "So we are now young, but we retain all of our knowledge, great, Kenichi, Miu stop freaking out, this is great, we have an opportunity many could only wish for!"

Kenichi grabbed Nijima by the neck and told him to clarify, as Miu was sobbing as she was sitting on the ground. "Kenichi, Miu, we know everything that will happen, except for a few things that are different due to the three universes merging, we have a chance to become filthy stinking rich, make my Shinpaku Alliance the strongest in the new universe, and finally my conquest of Earth can begin!"

Kenichi was not in the mood for his ego-boosting schemes so he hit him hard in the stomach, and told him he better give him a better reason, Vegeta simply looked at Goku and remarked that Goku and his friends called him violent, "Alright, Kenichi, Miu, we have a chance to change our lives for the better, we can try and prevent the needless deaths of so many of our friends by becoming stronger than ever, and by using our knowledge, we can help the people around us, and prevent so many horrible tragedies."

That is when Kenichi asked the man named Vegeta what would he and his friend do? "As much as I would love to say this is a situation where the problem is not something we should get out hands dirty with, it's a little too little, too late, so we will help you as much as possible, considering our universe also became part of the new universe you three will basically reincarnate, the only difference is that you retain the memories of your supposed previous life."

Goku looked at his friend and smiled, "Essentially that is true, but it would prevent a lot of problems, if you three could keep how it is that you have all these memories, knowledge, and skill, to anyone that you do not consider family, since strangers could very well talk about this, and the more people know that you retained your memories, the more likely you and both of us will be in danger by the standards of time patrol rules and procedures."

Nijima looked at them and asked them both what could happen if this apparent time law enforcement agency found out, Vegeta was not liking the tone Nijima was using considering this was almost insulting some of his family members, he just told them point black, they would look at the precise moment in time they saved Nijima, Miu and Kenichi and prevent them from being saved in the first place, causing them to forget every single memory they would otherwise retain, be forced to restart their lives with literally nothing to help them.

The mere idea Nijima would lose the information and in fact, would lose all the profits and influence that he would obtain thanks to those memories, made it absolutely certain that Nijima would do his very best to make it impossible for anyone other than trusted people would be allowed to hear the source of their knowledge, he would not risk such catastrophic loss for all the gold in Japan.

Nijima looked at them almost worried to ask what will happen, "So what exactly is going to happen once we arrive back to our homes?" Vegeta told him they will appear in exactly the same place they lived when they each were the current age they appear, Goku told them not without first learning plenty about KI and some training techniques that would help them be more efficient in their training.

"Goku we are not supposed to do that, if we start teaching them things like that I think the guy named Nijima would try to use that information in a get-rich-quick scheme, the last thing we need is another Hercule Satan." Vegeta felt Goku pat him on his back, "Don't worry buddy, our world that other world chock full of amazing fighters, and their part world are all fused together, plus he doesn't exactly look like he was trained to be a martial artist, so he has no chance of figure this out, and even if he did, since he is not an expert martial artists at the very least nobody would believe him."

That made Vegeta relax a little, so they each took on the two who were trained to be fighters, Vegeta taught the guy named Kenichi because according to him, he would benefit the most from his methods of training, Goku agreed and began to teach his methods of training to Miu. Nijima simply asked to access the library while he waited for the training to be finished.

It took a total of two months for Miu and Kenichi to learn everything they had to teach about KI, Spirit Energy, and to use this as a means to train and self-defense. All in all, this actually impressed both Vegeta and Goku quite a bit, in fact, Vegeta couldn't help but feel extremely proud at how both of them learned everything they had to teach them.

Goku smiled as he saw the look on Vegeta's face, it practically screamed of his approval and feeling of pride as he looked at their two students, "Feels great, doesn't it? To see your students improve faster than you ever realized, to see them become better and stronger, I know the feeling well Vegeta, I felt exactly the same thing as you are when I had students too."

This made Vegeta realize also he missed his wife and kids so much, the current place where he slept felt like a graveyard, he secretly hoped he would be able to start his relationship with Bulma all over again, he was certain that Goku would be able to continue his relationship with Chi Chi as if nothing ever happened, except that now, at last, he knows about women and what marriage is.

Since their universe merged it also means tragically that they too were going to be sent back to when they were eight years old, Goku would probably be on Earth, and Vegeta knew he would be back among the warriors of the Frieza Force, but they still had their memories, so that means many different tragedies that happened before would be prevented.

He decided that he would do everything he could to save the lives of the worlds he was sent to attack, or as many as he was able, his friend Goku also helped him teaching him instant transmission, which helped in moving thousands if not millions of alien species to new worlds that Frieza had no clue existed, to prevent them from being exterminated by the warriors that were under the command of Lord Frieza, the self-proclaimed galactic emperor, who sent warriors to eliminate all life on a world only to sell it in the planetary exchange market, with the cruelty of a land baron.

Vegeta also did something that most of his own kind considered unthinkable, he began to train the remaining Saiyans to such a degree that many people began to wonder why he was doing this for people who were not even his family. He was certain Goku was doing exactly the same thing with his friends that one day would be called the Z-Fighters.

Kenichi was back with his parents who initially freaked out when they saw their son working out like he was part of the Olympic team, he used KI to replenish his stamina and to heal any soreness that happened due to his training, he was also sure that Miu was traveling with her grandfather and the rest of the masters of Ryozanpaku, he was also sure Miu was shocking them as much of even more shocked that his parents were.

So the eight-year-old Prince of all Saiyans gathered every single Saiyan that survived, and told them the heartbreaking truth once he was certain nobody would hear that was not supposed to, he told them that instead of killing the people of the planets they were sent they would instead help them evacuate to new planets since their universe had plenty of life-sustaining worlds that Frieza didn't even know about existing.

The brother of Goku flat out asked why bother? He simply told him if they didn't do this they would be no better than the genocidal monster that destroyed their world, that made these proud warriors really think about the reason and began to nod their heads in agreement. There were not that many, to begin with, there were only four Saiyans left, Raditz, Nappa, Vegeta, and Goku. Of all them, only Raditz, Nappa, and Vegeta were in the Frieza Force, so these three would do as much as they could, using instant transmission to save as many people as they could.

So this went on for ten years, ten years of training, of going to school, of trying their very best, Kenichi having his memories of his other past life, became rather popular with the ladies due to his looks and muscular appearance due to his training, but what shocked his fellow students was that he was not a typical muscle head, he was kind, considerate, and to top it off the top of his class every single year. The teachers who had problems lifting or moving heavy furniture were amazed as they watched Kenichi move that as easily as breathing.

Having learned Instant Transmission also means that he spent a lot of time sparring with Miu, who was slowly becoming the beauty Kenichi fell in love with, she also told him of what was happening during the travels with her grandfather and her surrogate family. This made Kenichi feel less worried about Miu and the people of Ryozanpaku that he had also come to consider his family and friends.

Nijima did what Miu and Kenichi expected, he didn't even once tried to get in touch with them, Miu simply told Kenichi he is probably too busy or doesn't remember their phone numbers, it's not like he could use instant transmission like they could sense he was not trained.

Kenichi told her that apparently, every single person in their current world learns basic martial arts, and he told her that Nijima is probably not even thinking about getting in touch with them since he was more than likely busy, Kenichi was could not help but feel that Nijima was already using the memories and knowledge he obtained from that strange library to make himself rich, Kenichi could practically hear him laughing in glee that his scheme to take over the world was going so well.

After ten years the day finally came when Miu transferred to the school Kenichi was enrolled in, it was ten years, and he simply could not help but be anxious to go and meet his beloved Miu as she was walking towards the school for her first day of class, he decided to wait in the sidewalk that would lead her to the school.

That is when she came into view wearing the school uniform, her glasses, and Kenichi took a deep breath to calm his heart, she was as beautiful or even more beautiful than he remembered her when they first met in that other life, he walked towards her as she waved her hand towards him greeting him when she finally saw him from afar.