Dragon Ball World, Earth, July, Age 750.
After Goku became the runner-up in the 21st World Martial Arts Tournament, killed Tao Pai Pai, and defeated the Red Ribbon Army.
It had been over two months since he reunited with his late Grandpa Son Gohan and resumed his training.
During these two months, he had been training diligently.
In between, he defeated two scoundrels calling themselves Kinkaku and Ginkaku, fought the human martial artist Tian Long, learned the Phantom Star Fist, and went to the Demon Realm to rescue a princess.
"1121, 1122, 1123..."
On a steep mountain road, Goku, who had grown his tail back, was carrying a huge boulder, gritting his teeth as he frog-leaped forward in the pouring rain.
This was one of the training methods of the Turtle School to strengthen the Physical Body.
Suddenly, a beam of light descended from the sky, striking Goku right in the center of his forehead, causing him to roll his eyes and pass out.
When he woke up again, he found himself in a vast, white space.
In this space, countless glowing doors were scattered densely, each imprinted with patterns and text.
Most of those patterns were people wearing different clothes, and although he didn't recognize the text, he strangely understood what it meant.
"Marvel, Harry Potter, demon slayer, Attack on Titan, Inuyasha, Naruto..."
Reciting the names on the doors one by one, his gaze finally rested on the glowing door behind him: "Isn't this me?"
He was surprised to find that the pattern imprinted on the glowing door behind him was indeed himself, and the text written on it was "Dragon Ball."
Curious, he reached out and pushed open the door with his picture on it, and his mind suddenly went blank.
Opening his eyes again, he found himself back on the mountain slope where he had been training, and it was still raining heavily outside.
"What's going on?"
Goku blinked, clearly unable to understand what had happened.
"Forget it, I won't think about it."
After thinking for less than five seconds, he gave up on the question and continued to carry the boulder and resume his frog-leap training.
For him, ever since he left Mount Paozu with Bulma, there had been too many things he couldn't understand.
But it didn't matter. If he didn't understand, he didn't understand. Training hard and improving his strength to win the championship at the World Martial Arts Tournament in three years was what mattered most.
At night, the rain stopped, and Goku frog-leaped with the boulder to the top of the mountain.
"I'm hungry!"
Putting down the boulder, he rubbed his stomach and muttered, "I'll catch a tiger to eat today."
With a few leaps, his figure disappeared into the nearby forest.
Half an hour later, Goku walked out of the forest dragging a Sabretooth as big as a small car.
An hour later, Goku sucked on the last bone of the tiger, rubbed his round belly, and closed his eyes in satisfaction.
In less than three seconds, he had entered a deep sleep.
However, three seconds later, his figure suddenly disappeared from where he was.
Eight hours later, Goku opened his eyes, stretched, and prepared to find some breakfast.
But after he saw the surrounding environment clearly, he fell into confusion again.
"How did I come here again?"
Indeed, the place where Goku was at this moment was the space filled with glowing doors.
After walking around in the white space, this time he reached out to touch the door with his own pattern again.
Unsurprisingly, he returned to the mountain top where he had been before falling asleep.
Only then did he realize that as long as he touched the door with his own pattern in that white space, he could return to the place he had left.
"Then how did I enter there?"
A question mark appeared in his mind again.
But Goku didn't think too much about it. He got up, went into the forest to catch a wild wolf for breakfast, and resumed his hard training.
Compared to the secret of the white space, he cared more about his training.
At night, in the cave, Goku, who had been training all day, went to sleep as usual.
Eight hours later, he opened his eyes and, sure enough, arrived at the white space again.
"So, as long as I sleep, I will appear here."
Although Goku was not very clear about many common things and didn't care much about things unrelated to training, it didn't mean he was stupid.
So, after experiencing it two or three times, he quickly figured out the pattern of entering the white space.
As long as he fell asleep, he would enter the white space, and as long as he touched the door with his own pattern, he could come back.
"Then what are these?"
This time, Goku did not touch the glowing door with his own pattern but reached out to touch another glowing door next to it.
His mind went blank, and when he regained consciousness, he found himself in a strange alley.
"So it's the same as the jars of Lord Karin."
At this moment, Goku suddenly realized.
Previously, while fighting Tao Pai Pai, he had climbed Korin Tower and received training from Lord Karin.
While being trained by Lord Karin, he knew that Lord Karin had several jars.
Those jars could lead to different places in the World.
It seemed these doors could also take him to different places in the World.
"I'm hungry, let's go find something to eat!"
Goku rubbed his stomach, prepared to leave the alley to get some breakfast, and then continue his training.
For him, it was the same wherever he trained.
And he had just woken up, so it was impossible for him to fall asleep and enter the white space again to use that door to return to the previous cave.
He would have to wait until night to go back.
"Gabriella, you can't escape!"
Just as Goku took a step, a sharp shout came from the entrance of the alley.
Immediately after, he saw a woman holding a little girl rush into the alley, followed by a group of burly men holding guns.
The roar just now was shouted by the leading burly man.
"Oh no, a dead end!"
The woman saw that there was no exit to the alley, and there was also a cute-looking boy standing inside, so her face changed instantly, and she turned to face the group of burly men.
And the group of burly men showed joy on their faces.
"Gabriella, the Commander said that as long as you are willing to take X-23 back to the laboratory and tell us the location of the other test subjects, he can give you wealth that will absolutely satisfy you."
The leading Captain ignored the strangely dressed, cute boy in the alley and looked at the girl in Gabriella's arms with some apprehension.
That girl was test subject X-23, whom Gabriella named Laura, and was the most dangerous Mutant child in the laboratory.
"You demons, I will not hand Laura over to you."
Gabriella refused without even thinking.
She was originally a Nurse in Mexico City, working at a place called the Gene Modification Institute.
This Institute researched drugs on the surface, but in reality, it paid local women in Mexico to be surrogates to breed Mutant children.
Then, it trained and raised the Mutant children to become killing machines.
However, recently, the Institute's research had a new Breakthrough, creating more powerful test subjects.
So it decided to kill all these uncooperative Mutant children.
After accidentally learning the truth, she risked her life to take all the Mutant children and escaped from the Institute.
It was just that they got separated during the escape, and she had to quickly take Laura to the target location they had originally discussed to meet up with the other children.
"Since that's the case, don't blame us for being impolite!"
The leading Captain signaled to the team members behind him, and they immediately aimed their guns at the little girl Gabriella had put down.
Gabriella was just an ordinary Nurse with no threat; the real threat was X-23.
"The Commander said that if you don't agree, we can also take your corpses back."
At this moment, the little girl's hands slowly extended two Adamantium claws simultaneously, her eyes filled with Killing Intent.
Just when the battle was about to break out, the boy behind suddenly leaped in front of Gabriella and Laura.
"Stop, what are you doing?"
Goku questioned the group of burly men in front.
The group of people in front gave him a feeling very similar to the evil Red Ribbon Army that he had wiped out.
"Little kid, it's dangerous, move away quickly!"
Seeing the boy protecting them behind him, Gabriella immediately showed a look of anxiety.
The armed personnel of the Institute in front of them were all demons who killed without blinking and didn't care at all if the enemy was a child.
"Get lost, brat!"
Sure enough, the leading Captain did not hesitate at all, raised his hand, and fired a shot at Goku's head.
"Bang!"
The bullet whistled toward the center of Goku's forehead.
However, the next second, everyone's face showed an expression of disbelief.
"What!"
"It seems you are all bad people!"
Goku threw the bullet in his hand onto the ground and assumed the Turtle School fighting stance.
It turned out that, facing the attack of the bullet just now, he had caught it directly with his hand.
If it were back when he had just left Mount Paozu, he really wouldn't have been able to catch a bullet with his bare hands; at most, he could only withstand the bullet with his body.
It would still hurt a little if he were hit by a bullet.
But after the subsequent adventures, after training with Grandpa Master Roshi, and after the World Martial Arts Tournament and the battle with Tao Pai Pai, his strength had already improved significantly.
"Captain, look behind him, is that a tail?"
After recovering, a team member suddenly discovered something and hurriedly pointed to the tail sticking up behind Goku.
"So that's it!"
After seeing the tail behind Goku, the leading Captain's face showed a look of realization.
"I didn't expect there to be wild Mutants; kill him too."
If he saw a little boy with a tail behind his butt on the street, he would only think that the other party had installed a tail-like decoration on his butt.
Because after so many years of effort by his Institute, there had long been no wild Mutants in the World.
Among the escaped test subjects, no Mutant child had a tail.
However, now this boy could actually catch a bullet with his bare hands, so he must be a Mutant.
Besides Mutants, how could an ordinary person, no matter how strong, catch a bullet with their bare hands?
However, he was not too worried; being able to catch a bullet was nothing; there were plenty of Mutants who could catch bullets.
He had previously followed the Commander to hunt Mutants; what kind of Mutants hadn't he seen or killed?
Can he catch one, can he catch two, three, can he catch a hundred?
Not everyone is a freak like Magneto.
Normal Mutants, if their numbers are small and they don't have much combat experience, are simply not their match.
As long as they are carbon-based life forms, they cannot withstand modern weapons, and even Mutants are no exception.
However, as soon as his voice fell, he found that the boy standing there had disappeared.
"Where is he?"
The next second, he felt an unbearable heavy blow to his abdomen, and with a roll of his eyes, he passed out on the ground.
As for the rest of the team members, they saw the target boy rush to the Captain's front as if teleporting.
With just a light punch, their battle-hardened Captain fell to the ground.
Before they could even turn their guns to aim, they all followed in their Captain's footsteps.
Their eyes couldn't even clearly see the trajectory of the opponent's movement.
"Just as weak as those people from the Red Ribbon Army."
Looking at the burly men who had fallen all over the ground, Goku clapped his hands and turned to smile at the dumbfounded Gabriella: "Auntie, are you okay?"
"I... I'm fine."
The shock in Gabriella's eyes was no less than that of the burly men who had been knocked down.
She didn't expect to encounter a wild Mutant child here, and one so powerful.
"Quick, let's get out of here first!"
After reacting, she immediately picked up the little girl again, stepped forward to grab Goku, and ran out of the alley.
The squad just now must have already reported to the Commander of the Institute after finding them.
If they stayed here any longer, a large squad of heavily armed mercenaries specifically for hunting Mutants would soon come to round them up.
Those people wouldn't be carrying pistols then, but heavy weapons like submachine guns, sniper rifles, and Rocket launchers.
No matter how well the boy could fight, it would be useless.
Running out of the alley and quickly finding her small car, Gabriella shoved Goku and Laura into the back seat and slammed on the gas, speeding towards her home in the west of the city.
"Where are we going?"
Goku sat in the back seat and tilted his head to ask Gabriella.
Because he didn't feel any malice from Gabriella, he didn't resist when she pulled him into the car.
"We're going to the west of the city. Little kid, what's your name, where is your home? I'll take you home first."
Seeing that they had driven out of the area, Gabriella breathed a sigh of relief.
Goku replied: "My name is Goku, I live in Mount Paozu. You don't need to take me home, I'm out for training."
"Mount Paozu? Training?"
A look of confusion appeared on Gabriella's face.
She had never heard of a place called Mount Paozu, and training—what was there for an eleven or twelve-year-old boy to train for?
"Then where are your parents? Do you have their phone number?"
The little boy had just saved them, so even though their situation was not very good now, she still intended to take the little boy home.
And remind the little boy's parents to leave this city immediately, otherwise, if discovered by the Institute, they would definitely be captured for experiments or killed.
"I don't have parents; Grandpa found me and raised me."
Goku replied honestly.
Gabriella heard this and looked back at Goku, her eyes full of pity.
This child must have been abandoned by his parents because he was born with a tail.
"Then where is your Grandpa now? Do you have his number?"
"Grandpa, Grandpa passed away, and now he lives in the Other World."
Goku remembered the last time he saw Grandpa at Fortuneteller Baba's place; Grandpa said he was living happily in the Other World and not to use the Dragon Balls to resurrect him.
"I'm so hungry..."
At this moment, his stomach growled; he hadn't eaten breakfast today yet.