Dragon Ball: I have the wrong system and I have entered the wrong world

"I see, is that the machine you use to travel through time and space?" Black Goku said gloomily, staring at the [Time and Space Machine] in the air. His voice was cold, with a hint of anger that could not be concealed.

"How can I let you go like this?" Black Goku said as he gathered a powerful energy ball in his hand, ready to shoot down the [Time Machine]. His eyes flashed with a fierce light, as if he wanted to destroy everything.

However, at this moment, Big Trunks stopped him in time. "Don't even think about it!" Big Trunks shouted, rushed forward at an amazing speed, and punched Black Goku in the abdomen.

This attack did not cause any substantial damage to Black Goku, but it successfully interrupted the attack he was concentrating on.

Black Goku's expression became even uglier. He glared at Trunks fiercely, his eyes full of murderous intent.

Black Goku came to his senses, his eyes turned cold, and he instantly burst out with amazing strength, pressing Big Trunks to the ground.

His palms tightened around Trunks' throat, making it difficult for him to breathe.

"Don't get too proud, Trunks." Black Goku said through gritted teeth, his tone full of murderous intent.

His grip tightened as if he wanted to strangle Trunks here.

On the other side, Sun Wukong seized this opportunity and quickly activated the [Time Machine]. They activated the machine and left this world.

With the departure of the [Time and Space Machine], the entire battlefield fell into dead silence.

Black Goku was still holding Trunks tightly, his expression cold and ruthless.

Trunks felt relieved when he saw this. Although he was in extreme physical pain, he couldn't help but smile.

"Please, Mr. Goku, Dad..." Trunks prayed silently in his heart.

Modern time, in the backyard of Bulma's house.

At this moment, a wave similar to water ripples suddenly appeared in the sky, as if breaking the calm water surface. The next moment, an unexpected scene appeared before their eyes. The [Time Machine] that Sun Wukong and Vegeta were riding appeared out of thin air in mid-air!

Pilaf and his gang and Trunks in the yard stared at the strange scene with wide eyes and astonishment.

"Mom, the [Time Machine] is back!" Trunks shouted excitedly to Bulma in the house.

Upon hearing the news, other people in the room rushed out, each with an expression of anticipation and nervousness on their face.

However, a strange thing happened. The door of the [time and space machine] did not open automatically as usual. Everyone's eyes were focused on the tightly closed hatch, and their hearts were full of doubts.

Time passed by, and just when everyone was anxious and wanted to check the situation, someone finally crawled out of the [Time Machine]. That person was the wounded Son Goku, who carried the still unconscious Vegeta on his back and walked out of the cabin step by step.

Everyone present was horrified when they saw this scene and rushed forward to support the two.

"Trunks!" Seeing that they were the only two people coming out of the [Time Machine], Bulma shouted anxiously inside.

But after waiting for a long time, there was no response, and Bulma's heart sank.

At this time, Son Gohan took out two Senzu Beans and gave them to Son Goku and Vegeta to eat. The two of them recovered immediately.

"Trunks...he didn't come back." Son Goku said dejectedly.

"What the hell is going on?!" Upon hearing the news, Vegeta grabbed Goku by the collar and roared in anger.

"At that time, you were unconscious... like this, like this, like this, like this..."

"There's no way Trunks and I could defeat Black Goku and Zamasu, so Trunks stayed behind to attract their attention so that the two of us could return on the [Time Machine]," Goku explained.

"Damn it! I didn't expect that guy to be so powerful!" Vegeta said gritting his teeth.

"I'm really sorry for leaving Trunks alone to hold the other team back so that we can come back, but... there was no better way at the time." After saying this, Son Goku apologized to Bulma.

"It's okay Goku, you don't have to blame yourself." Although Bulma was in a heavy heart, she still comforted Son Goku.

"What should we do now? Trunks is still fighting that monster alone in the future world!" Xiao Wu asked anxiously. Her voice was full of worry and uneasiness.

"We can't just sit there and wait for death. We must find a way to go back and help Trunks!" Son Gohan said firmly.

"I will first go to Master Roshi to learn the [Mafuha], and then go back immediately to defeat them." Sun Wukong said with a serious expression. There is no way to deal with Zamasu who possesses the [immortality] by normal means. It is necessary to rely on means like sealing to restrict his movements.

"Even if you say you want to go back, it will take a whole day to extract the fuel for a round trip." Bulma frowned and said helplessly.

Time is running out, and extracting fuel will take a lot of time, which makes Bulma, who is concerned about Trunks' safety, very helpless.

"Kakarot, you knew this but still kept Trunks here?" Vegeta said, suppressing his anger. He was very dissatisfied with Goku's decision.

"It's useless to blame Goku now, Vegeta, and the situation has come to that point." Although Bulma was still sad in her heart, she was still relatively rational. She turned to Vegeta and said.

She understood that now was not the time to blame each other, but to unite and work together to find solutions to the problem.

"Really, I'm terribly sorry." Upon hearing this, Sun Wukong once again lowered his head in shame.

"But if you think about it carefully, since we are riding on a [time machine], even if we spend a day here, can't we just go back to the same day we left? This is equivalent to us never leaving there at all." Sun Wukong scratched his head and said thoughtfully.

"Yeah, you are really smart, Uncle Goku." Trunks said happily on the side, thinking that this method is feasible.

"No, think about it carefully. Although it is a [time machine], it does not actually go to the future. Instead, it connects two parallel worlds. After all, this is the original setting, and it has not changed from the beginning to now." Bulma explained solemnly. This is why she was so worried.

"What did you say?!" Vegeta shouted in surprise upon hearing the news.

"So we must never easily change the originally set program. That is to say, if one day passes here, then one day will also pass in Trunks' future world." Bulma continued to explain the principle.

These words surprised everyone present. Even those who didn't understand roughly understood the result, which is - no matter how much time has passed in this world, when he returns to another world, the same amount of time will have passed, and it cannot be changed.

"In fact, the connection seems to be weakening significantly. I'm afraid the next round trip will be the last one. We won't be able to go to Trunks' future world anymore." Bulma said worriedly.

"how come?"

"Oh, that's terrible!"

After hearing the news, everyone opened their mouths in surprise.