In the end, Goku's hunting experience proved superior, and he found the stone with the character on it. Krillin tried to trick Goku into giving him the stone, but as he had this thought, he noticed John Doe staring at him intently.
Krillin swallowed hard and decided to give up.
So, for dinner, Master Roshi, Launch, and Goku sat at the table, while Krillin drooled on the side, and John meditated nearby, calming his mind and striving for mental tranquility.
John had never watched Dragon Ball Super, but he was aware of the concept of Ultra Instinct. To achieve Ultra Instinct, the most crucial aspect was to act before thinking, ensuring that the body's reactions were faster than one's thoughts.
Goku had undergone this type of special training in the God's Temple in space, but he had to halt his progress due to the Super Saiyan transformation.
However, even with just a short period of training, Goku had laid the foundation for his future Ultra Instinct awakening.
Of course, it's not as simple as training to act before thinking and then awakening Ultra Instinct. To achieve Ultra Instinct, one must first awaken the power of the gods and cultivate an incredibly high level of physical fitness.
John had no choice but to follow the traditional path and progress step by step in his training, with no shortcuts.
Although Master Roshi was eating dinner, he kept a close eye on his three disciples. Goku and Krillin's performances were as expected, but John's performance was beyond his wildest imagination.
Acting before thinking was a state that even Master Roshi had not attained. He was amazed that his disciple was already attempting to cultivate this skill.
However, this type of training was not easy; it was not something that could be achieved overnight. As far as Master Roshi knew, only his teacher, Master Mutaito, had barely reached this level.
Master Roshi felt the need to pay close attention to John, as he had a premonition that John's future achievements would surpass all expectations.
At 4 a.m., Master Roshi woke John and the others from their beds. Krillin and Goku were still groggy with sleep.
Master Roshi said, "From today onwards, we will officially begin our training. The first task is to deliver milk."
Master Roshi then led John and the others to the milk crates, saying, "Each of you will carry a crate of milk and run behind me. I'll be in front, John, you'll be at the back, and you'll supervise the others. If anyone slacks off, let me know."
Just like in the manga, John and the others followed Master Roshi, carrying milk crates and running behind him for the next eight months.
They woke up at dawn to deliver milk, then plowed fields for farmers without tools in the morning, worked for construction workers in the afternoon, swam, and engaged in various other training activities. Master Roshi kept them busy throughout the day.
Starting from the second day, Master Roshi made them carry twenty-kilogram turtle shells on their backs until the training ended. However, after feeling the weight of the turtle shell, John asked Master Roshi to increase the weight of his shell to forty kilograms.
Master Roshi glanced at John and nodded in agreement, but he said, "Be careful and switch back if you feel any discomfort."
Although John initially struggled with the forty-kilogram shell, always lagging behind in training, his Saiyan body's potential gradually awakened, and his strength increased. Soon, he reclaimed the top spot in their training.
After adjusting to the forty-kilogram shell, John requested to increase the weight of his shell to sixty kilograms.
Goku and Krillin, not wanting to be outdone, also switched their shells to forty kilograms.
Watching his disciples train so diligently, Master Roshi couldn't help but smile, his mouth twitching. He began to question whether he should participate in the upcoming World Martial Arts Tournament.
One month before the tournament, John once again increased the weight of his shell to eighty kilograms, shocking Master Roshi. He felt that John's strength was improving at an astonishing rate.
This was mainly due to John's Saiyan body. Goku was still a child, and his body was still developing, but John was different. He was already an adult, and even without training, Saiyans at his age were incredibly strong.
However, John had obtained his Saiyan body through a wish, which allowed him to rapidly increase his strength in a short time until he adapted to the full potential of his new body.
This meant that John's current strength increase was passive, but once he reached a certain level, he would need to put in his own effort to continue improving.
The eight months of training passed quickly, and Master Roshi finally ended John and the others' training. He gathered them and said, "Now you can take off your turtle shells."
Hearing Master Roshi's words, the three of them removed the heavy shells from their backs. The shells hit the ground with a loud "thud," especially John's eighty-kilogram shell, which sank several centimeters into the mud.
Goku and Krillin jumped with excitement, surprised by their own leaping ability. They cheered and ran around the island in high spirits.
Master Roshi walked up to John and asked, "Why don't you test your current strength?"
John shook his head and said, "There's no need. The strength of one's body is not that important. There will be many strong opponents to test us at the upcoming World Martial Arts Tournament."
"We've only just taken the first step in our martial arts journey. There's still a long way to go, and I believe it's best to maintain a humble attitude."
Master Roshi looked at his disciple, feeling that he couldn't quite understand him. Despite his young age and incredible strength, John showed no arrogance and had a clear understanding of himself, which was truly rare.
If he could maintain this attitude, Master Roshi believed that John's future achievements would be limitless. This was the second time Master Roshi had thought so.
As time went on, John would undoubtedly continue to surprise Master Roshi.
In the blink of an eye, it was the second day, and Master Roshi was about to take John and the others to the World Martial Arts Tournament on Papaya Island.
At that moment, Launch emerged from the house carrying a large box and said to John and the others, "Come here, I have a gift for you."
John opened the box and was surprised to find three sets of blue suits inside. They happily put them on and showed them off.