Son Goku's Greatly Increased Strength!

"I have no problem teaching you how to transform into a Super Saiyan 4, but your current strength is still too weak.

The transformation of a Saiyan relies primarily on the power of your base form.

I have already told you this before: the stronger your base strength, the greater the boost you receive after transforming into a Super Saiyan."

Soya spoke slowly.

"I have already mentioned this point before; you should be able to remember it.

You must realize that in previous battles, especially after you all became capable of transforming into Super Saiyans, you began to gradually rely on those transformations.

Although you haven't stopped training your base strength, you haven't been as diligent as you once were.

This is actually the drawback brought about by transformations, because the boost in power they provide can make a person become numb."

Soya spoke slowly.

Upon hearing Soya's words, Son Goku nodded.

He had long since discovered this himself, which is why he generally avoids transforming during a fight unless he is forced into a corner.

"I will not teach you the method to transform into a Super Saiyan 4 immediately.

However, since you already have this goal in mind, the training that follows will be a significant challenge for you.

A Saiyan's power comes primarily from their tail, and you no longer have one.

But since you are a Saiyan, not having a tail doesn't matter much; as long as you can grow it back, that will suffice."

Soya said with a smile.

"A tail?"

Son Goku was stunned for a moment. He looked at Soya and noticed that Soya, just like him, did not have a tail either.

"Is a tail required to transform into a Super Saiyan 4?

But you don't have a tail either, so how are you able to transform into a Super Saiyan 4?"

Son Goku looked at Soya, his expression filled with confusion.

Soya was taken aback; he didn't quite know how to answer Son Goku, nor could he really provide an answer to that question.

"Don't worry about that for now. Let's begin the training; that is what matters most.

However, before we start, there are a few points I must bring up. I will only train you if you can meet these requirements.

If you cannot, then go with Vegeta to the God of Destruction Realm and choose the path of the Super Saiyan God instead."

Soya spoke slowly, and although his voice was soft, it carried an unquestionable firmness.

"Rest assured, since I have come, I will not back down."

Son Goku nodded; he was very confident in this regard.

"That is naturally for the best."

Soya said, nodding as well, and continued.

"My requirements are simple, consisting mainly of the following points.

First, during my training, you must face everything in your base Saiyan form; you are not allowed to transform into a Super Saiyan.

Second, you are not permitted to leave this valley for one year; you must live here.

Third, in exchange, you need to teach me the method for using the Kaioken."

Soya listed the three points.

After all, he couldn't possibly train Son Goku for nothing; he had to take what he wanted.

"No problem!"

Son Goku agreed almost without the slightest hesitation.

"Then let the training begin!"

As soon as Soya finished speaking, an incredibly powerful pressure erupted from his body.

This pressure was immense, and as it expanded, it instantly enveloped the entire valley.

"What?"

In his base form, Son Goku had no power to resist this pressure and was immediately shaken, collapsing to the ground.

"This..."

Son Goku's body trembled. He tried to stand up several times, but with his base strength, he simply could not do it.

"This is only one-tenth of the pressure from my base form. If you can withstand this, your strength will surely improve significantly.

Once you can move freely under this pressure of mine, you will have passed this first test."

Soya's voice drifted over.

Son Goku's face was pale as he exerted every ounce of his strength in his base form to resist the pressure.

Two months passed in the blink of an eye.

Although it was not a long time, merely sixty days, for Son Goku, every single one of those sixty days had been an ordeal of torture.

Even with his personality, he had considered giving up at times, but fueled by his ultimate unwillingness to fail, he had forcibly endured it all, doing his utmost to resist the pressure exerted by Soya.

Soya's pressure had also been adjusted, scaling from the initial ten percent up to the current one hundred percent.

After two full months, Son Goku was finally able to move freely while facing Soya's full pressure in his base state.

Though the process had been incredibly painful, the results achieved were equally significant.

At the very least, Son Goku's strength had seen a massive improvement.

"Not bad. After two months, you are finally able to move freely under my pressure. Your strength should have increased quite a bit by now; why don't you feel it for yourself?"

Soya glanced at Son Goku and spoke, as he could clearly sense the changes in him.

"BOOM!"

Without the slightest hesitation, Son Goku immediately erupted with the peak power of his base state.

A storm surged instantly, and the surrounding rubble crumbled into dust under the sheer force of his aura.

"This..."

An expression of disbelief appeared in Son Goku's eyes.

"How is this possible? How could my strength have increased this much?"

Son Goku spoke in utter shock, discovering that his current base power was already on par with his previous transformation into a Super Saiyan 2.

It was even stronger than it had been back then.

"Didn't expect it? Your power in your base state has already reached 15 billion. It only took two months; even I am somewhat surprised by your growth."

"15 billion?!"

Son Goku felt the changes within him and clenched his fists.

He felt as though he could shatter the heavens and the earth with a single punch even in his base state, as if nothing in this world could stand in his way.

"This kind of immense power is great!"

An excited look appeared on Son Goku's face.

"You're rejoicing too soon. This was only the first stage of training, the most basic level. I'm not surprised you made it through the first hurdle, but you might not be able to survive the second one that follows."

Before Son Goku could enjoy his triumph for long, Soya's words reached his ears.

"Don't worry, for the sake of increasing my strength, I won't give up!"

Son Goku spoke with great determination.

Unlike before, when he had been uncertain, he could now clearly perceive the massive gains he was capable of achieving. How could he possibly give up now?

"I hope so."

Soya smiled, offering no further explanation.