Back then, he had broken through his limits by absorbing the power of adult Gohan, Goten, Uub, and Trunks, thus mastering the Super Saiyan form that transcended Super Saiyan 4.

  But that method was unlikely to work in this era.

  Not to mention that Uub was only a few years old in this era, even with the power of Vegeta, Trunks, Goten, and Gohan, it probably wouldn't be enough to fill even half of his body.

  In his Super Saiyan 4 form, he could store a vast amount of energy, and even he didn't know where the limit was.

  "This is a real headache. If that method doesn't work, I'll have to use other methods."

  "If I want to break through my limits in a very short time, it seems there's no better way than to enter the Hyperbolic Time Chamber."

  Goku was very troubled.

  Frankly, training in the Hyperbolic Time Chamber was not the best choice. Not only was the environment harsh, but training alone would be inefficient and couldn't st long.

  Unless he could find like-minded people to train with in the Hyperbolic Time Chamber.

  Several faces fshed through Goku's mind.

  Gohan?

  That probably wouldn't work. The kid was still busy with his studies. Even if he had promised to train, he only did some simple exercises occasionally to ensure his power wouldn't decline.

  It was unlikely that he would train with him in the Hyperbolic Time Chamber again.

  Goten?

  The thought was immediately dismissed. Setting aside Goten's age, if Chi-Chi found out about this...the consequences would be unimaginable.

  He would definitely get a scolding.

  As for the other partners, Yamcha, Krillin, Tien Shinhan, Vegeta, and Piccolo, the first three could be ignored. Given the current situation, it was unlikely that they would agree to train together.

  After thinking about it, there were only two good candidates, Vegeta and Piccolo.

  As for Vegeta, Goku wasn't sure if he would train with him in the Hyperbolic Time Chamber. After all, their retionship was pretty good, but they had never trained together.

  If he took the initiative to invite Vegeta to train, he might be rejected.

  After constant elimination, the only person he knew who could train with him in the Hyperbolic Time Chamber seemed to be Piccolo.

  "Should I go to Kami's Lookout now and invite Piccolo to train in the Hyperbolic Time Chamber?" Goku murmured.

  At the same time, he had new pns. Training in the Hyperbolic Time Chamber like that seemed like a waste of the opportunity.

  But if he didn't go to the Hyperbolic Time Chamber, it would take a lot of time to break through his current limits.

  As Goku was lost in thought, an elderly figure suddenly fshed in his mind.

  The Old Kai.

  He was the one who had unlocked Gohan's potential, greatly increasing his power to the point where he even surpassed his Super Saiyan 3.

  And when Gohan couldn't defeat Majin Buu, the Old Kai had given him part of his life, allowing him to return to Earth.

  "That's right! There's also the Old Kai! He was the one who helped me pull out my tail. Maybe he knows how to make my Super Saiyan 4 stronger!" Goku decided to visit the Sacred World of the Kais.

  Throughout the universe, it seemed that the only one who could make his power stronger was the Old Kai.

  Soon, Goku focused his mind and quickly locked onto the location of the Sacred World of the Kais, sensing the ki of the Kais.

  Divine power was completely different from human ki. Generally, mortals could not sense divine power.

  But some mortals with overwhelmingly strong power were an exception.

  If it was the current Goku, his level wasn't high enough, and he wouldn't even be able to sense the Old Kai's ki, let alone teleport to the Sacred World of the Kais.

  But now, the person in control of this body was GT Goku, who had long been familiar with the ki of the Kais in his previous life.

  With his right hand formed into a sword finger pced on his forehead, Goku expanded his vast mental perception, transcending dimensions to lock onto the Old Kai's ki.

  With a thought, Instant Transmission was activated.

  ...

  The Sacred World of the Kais.

  As the holy nd where the Kais of each generation lived, the environment here was difficult to find in any lower world pnet throughout the entire universe.

  Now the universe was at peace, and there had never been any turmoil.

  With nothing to do, Kibito Kai and the Old Kai were passing the time.

  Kibito Kai used his ability to observe the newly born pnets in the lower world, observing the creatures on these pnets and their potential for future development.

  The Old Kai was doing the same, but the Old Kai didn't know what he saw. His old face showed a perverted smile, and he kept saying, "Like that, a little lower! A little lower!"

  This scene was seen by Kibito Kai next to him.

  Seeing his ancestor so excited, coupled with his understanding of the Old Kai, Kibito Kai immediately had the wrong idea.

  "Old Ancestor, as gods, we can't do such things." Kibito Kai stood in front of the Old Kai and said righteously.

  Seeing Kibito Kai blocking him and saying things he didn't understand, the Old Kai gred at him and said unhappily, "You kid, get out of the way! The moment of victory is coming soon!"

  "The moment of victory?" Hearing this, Kibito Kai froze and subconsciously turned his head, following the Old Kai's gaze.

  He saw two beetles dueling on a tree on a distant pnet. One of them had been overturned, decring the victory of the duel.

  "Seriously, I lost again." Seeing his favorite beetle overturned, the Old Kai said with a look of disappointment. At the same time, he gnced at Kibito Kai next to him and said, "I said, you kid wouldn't have gotten the wrong idea, would you?"

  "That...that...the weather is really nice today..." Kibito Kai said awkwardly, quickly changing the subject.

  The Old Kai narrowed his eyes slightly, making Kibito Kai feel nervous.

  Just then, the space fluctuated.

  With a whoosh~!!, Goku appeared out of thin air between the Old Kai and Kibito Kai.

  "Goku?!" X2

  Goku's sudden appearance caused the Old Kai and Kibito Kai to excim at the same time.

  The Old Kai was very surprised by this. He never thought that Goku could reach the Sacred World of the Kais with his own power.

  Although there had been a previous incident, Gohan had been in the Sacred World of the Kais, and Goku had sensed his ki and teleported over.

  But now, in this vast Sacred World of the Kais, there were only him and Kibito Kai, no mortals.