By the time North Kai followed Bubbles outside and saw that scene, he was already feeling a little faint.
The training equipment he had specially ordered, thinking it would at least give him half a year to a year of leisure, was actually being treated like toys by them. North Kai's maiden heart was a little shattered.
In the past, very few people had been able to reach him through Snake Way. Even if they arrived on King Kai's Planet, the first thing they had to do was adapt to the gravity here.
On top of that, with Bubbles and Gregory standing in their way, passing those two's tests would also take a very long time, so North Kai was actually quite relaxed.
But now, it seemed North Kai's leisurely days were over.
However, after his maiden heart shattered, what followed was a long-lost excitement.
With their previous performance, perhaps one of the four of them really can learn Kaioken and bring it to its absolute limit.
And also that ultimate technique I've never been able to control perfectly!
Taking a deep breath, North Kai calmed the emotions in his heart and said to Son Goku and the other three, "Since you have already passed the previous tests, and have trained your bodies to a level that satisfies me, you are now qualified to receive my personal instruction!"
"There is something I must remind you of first."
At this point, North Kai's tone suddenly grew serious. In an extremely solemn voice, he said, "Next, what I am going to teach you is an extremely powerful secret art. But the price of that power is that it is extremely difficult to learn, and very hard to fully control."
"And I'm sure you've guessed some of it as well. The reason I had you train your bodies first is because this secret art places tremendous demands on physical strength."
"If your physical strength is not up to standard, forget using this secret art—you may not even be able to learn it."
Son Gohan was looking forward to it somewhat eagerly. After all, in the original work, it had never explained in detail how Son Goku learned the secret art of Kaioken.
The only two scenes there were showed Son Goku being sent flying by North Kai, and then another where he wrapped a strange energy around his body and performed a quick demonstration of smashing a large rock.
"First of all, this secret art of mine is called Kaioken. It is a secret art I created myself."
North Kai said loudly to the four of them, "This is a secret art that can multiply your combat power, and the multiplier increases according to the strength of your body."
"In other words, if your physical body is strong enough, then the multiplier you can enhance by can become even higher!"
"Think about it. If, while fighting your enemy, your strength suddenly doubled, or even increased threefold or fourfold, what would the result be?"
When Son Goku and the others heard this, they all revealed expressions of incomparable shock. A secret art that could multiply one's strength, and one that had no upper limit at that—was it really that powerful?
If he had not known the original work, Son Gohan actually would not have believed there was such a balance-breaking secret art. But with the facts right in front of him, he really had nothing to say.
"First, the principle behind Kaioken is to use the energy inside your body to stimulate your body, thereby obtaining greater power!"
When Son Gohan heard this, he was suddenly a little surprised. Wasn't this similar to forcing out the potential of the human body?
But that method could not achieve an amplification as terrifying as Kaioken's. No matter how much you stimulated your potential, it was impossible to draw out a terrifying power twenty times greater than your current level.
However, in the next moment, North Kai's following words dispelled his doubts.
"Perhaps you think this is one of those ordinary secret arts that stimulate potential. If so, you are gravely mistaken!"
North Kai gently shook his head and continued, "This secret art of mine is not something those ordinary things can compare with. Although my secret art similarly stimulates your power, it can also rapidly absorb external energy and use it together with your own."
"Our potential is like water contained in a bottle, while the energy outside is like the vast ocean. If you can make that immense external energy serve you, then your strength will begin to increase by multiples!"
"Of course, how much water you can hold depends on how large and how tough your bottle is."
"Because my Kaioken is a method that forcibly expands the bottle's capacity. If the quality of the bottle itself is too poor, it will be blown straight into pieces."
"So that is why I had you train your physical bodies first. Because this is the foundation for learning and using Kaioken."
Hearing this, Son Gohan finally understood the principle behind Kaioken.
He had suspected before how Kaioken could stimulate such vast and terrifying power.
So it turned out this was a terrifying technique that could rapidly stimulate the body's absorption ability, quickly converting external energy for one's own use within a short period of time.
No wonder its requirements for the body are practically insane. Even Son Goku, who has the protagonist's halo, almost got into trouble.
Of course, all four people present naturally wanted to learn such a secret art.
North Kai was not stingy either. Instead, he personally explained and taught the four of them on the spot how to stimulate and use this secret art.
Afterward, Son Gohan and the other three all discovered that although the Kaioken secret art sounded very simple, it was unbelievably complicated to learn.
After all, what it needed to stimulate and control were the body's energy nodes, and those things required one to sense them personally.
Just like machinery, or anything else, there would always be a "point." It might be a core point, a central point, or a node.
As long as you found this so-called "point," you could easily accomplish some very difficult things.
For example, that saying from his previous life: "Give me a fulcrum, and I can move the entire Earth."
Or the word "weakness"—it also contained a point, the core point of a thing!
So to sense these energy nodes, one needed sufficient knowledge and control over oneself. Even the current group could not completely achieve that.
But among the four of them, Son Gohan was an exception.
Because from the very beginning, aside from never neglecting the training of his body, he had also never given up on cultivating his mind.
This made Son Gohan's mind perhaps stronger than the three people present, so he was also the fastest to find these so-called "points."
Next, he had to try stimulating these energy nodes according to the secret art, causing the nodes to begin operating wildly.
But this step was even harder than the previous one. These energy nodes were no joke. If he accidentally caused a problem, it would result in a situation like "qi deviation."
That meant even stronger mental power was needed in order to control the amount of ki used to stimulate the energy nodes.
Son Gohan had already trained this back in the Hyperbolic Time Chamber, so now he could very easily control a stream of ki and begin slowly moving it toward an energy node.
Before you continue
Explore the wiki