The impact of hindsight is immense, as it wasn't until Trunks appeared that Goku and Vegeta learned of the existence of Super Saiyans. Both Goku and Vegeta struggled immensely to reach the level of Super Saiyan in the short three years that followed.
So when Android 17 and 18 appeared, Goku and Vegeta were quickly defeated.
Fortunately, the protagonist of this world was not Goku or Vegeta; it was Piccolo.
As the Super Saiyans fell in battle, Piccolo finally revealed his protagonist's aura.
Fusing with Kami, Piccolo surpassed his limits and successfully defeated 17 and 18. However, an unexpected turn of events occurred.
This unexpected event was Cell.
As Cell reached his Perfect Form, he became nearly unstoppable, even for Piccolo.
To defeat Cell in the Cell Games, Piccolo and the others embarked on grueling training.
Though the training progressed smoothly, in the final battle, neither Piccolo nor Goku had the strength to defeat Cell completely.
As for Gohan, sadly, in this world, he did not become the savior.
In the end, it was Piccolo and Goku who stepped up.
Just like the battle against Raditz, Goku and Piccolo, in order to win, set aside their pride and teamed up to face Cell.
As Goku sacrificed his life to trap Cell, Piccolo severely injured Cell with his final Masenko Beam Cannon attack, causing Cell to spit out 18 and lose his Perfect Form.
Seizing this opportunity, Piccolo finally succeeded in killing Cell, but the cost was immense.
Earth had forever lost the formidable warrior, Goku.
The following events were familiar to Lin Chen.
Just like in Lin Chen's world, the wizard Babidi arrived on Earth and resurrected Majin Buu.
To combat this threat, Z warriors, led by Supreme Kai, launched a counterattack against Majin Buu. However, the outcome was tragic.
With no Super Saiyan 3, Piccolo at Super Saiyan 2 level was the strongest among them, along with Vegeta, who remained at Full Power Super Saiyan 1 due to losing his will to fight after losing his eternal rival.
The strength of the Z warriors was completely inadequate in the face of Majin Buu, and the final outcome was naturally extremely tragic.
"I understand," Hearing this, Lin Chen nodded. "I can lend you a hand against Majin Buu, but I will only impart you the power. I won't intervene in the battle against Majin Buu."
"Why?" Piccolo was somewhat surprised.
"Sorry, but I'm not from your world, after all. I can't get too involved in your world's affairs," Lin Chen casually offered an excuse.
Dende looked regretful. "Mr. Lin Chen, most of the warriors on Earth have already sacrificed themselves. Just Mr. Piccolo..."
"Dende, that's enough," Piccolo interrupted Dende and turned to Lin Chen. "Mr. Lin Chen, as long as it can save this world, I'm willing to do anything."
"Very well." Lin Chen nodded and then borrowed the Hyperbolic Time Chamber from Mr. Popo to train alongside Piccolo.
So far, this was the only method he could think of to accomplish the mission.
Of course, according to the rules of the Hyperbolic Time Chamber, a person can only enter for a maximum of two days, and once that time is exceeded, the exit will be sealed.
And Piccolo had already used up all his time in the past in order to deal with Cell.
However, Lin Chen's current power far exceeded that of a Super Saiyan 3. The rules of the Hyperbolic Time Chamber were no longer effective against him. Even if the exit sealed shut, he could easily break through dimensions and come out.
So, at Lin Chen's insistence, Piccolo entered the Hyperbolic Time Chamber with him.
Inside the chamber, Lin Chen started from scratch, teaching Piccolo everything he could.
Since he couldn't directly intervene in Piccolo's battle with Buu, he could only hope to help Piccolo grow to at least the level of a Super Saiyan 3.
Lin Chen's idea was a good one, but this time he clearly overestimated Piccolo's potential.
In fact, it had been a full decade since Piccolo fused with Kami.
For a Namekian like Piccolo, who had little interest in the human world, these ten years had been spent almost entirely in training.
Because of this, Piccolo had already exhausted the potential he gained from the fusion.
After six months inside the Hyperbolic Time Chamber, even though Lin Chen diligently shared his insights and training methods, Piccolo's potential had seemingly reached its limit.
In those six months, there was hardly any noticeable increase in his strength.
The only thing that gave Lin Chen some comfort was that Piccolo had finally learned the Kaio-ken technique in these six months.
With Piccolo's current strength, which was close to Super Saiyan 2, if he could master a higher multiple of Kaio-ken, he might have a chance against Majin Buu.
Seeing success on the horizon, both Lin Chen and Piccolo couldn't help but give it their all.
And so, another year passed.
"Kaio-ken! 4x!"
Inside the Hyperbolic Time Chamber, Piccolo roared and a fiery red aura enveloped his body.
Immediately after, Piccolo moved swiftly and attacked Lin Chen, who had already transformed into Super Saiyan 3.
Piccolo was fast, but in Lin Chen's eyes, it was just so-so.
Lin Chen was currently transformed into Super Saiyan 3, aiming to imitate the strength of Majin Buu and determine whether Piccolo has any hope of defeating Majin Buu under 4x Kaio-ken.
Unfortunately, even though Lin Chen's current strength is possibly higher than Majin Buu's, even if you exclude the gap between the two sides, Lin Chen still does not think that Piccolo has a chance of winning.
Both Kaio-ken and Super Saiyan 3 were techniques that consumed an extreme amount of stamina.
Piccolo's current strength is close to Majin Buu, and defeating him would be extremely difficult, let alone winning within a time limit.
Shaking his head, Lin Chen no longer deliberately exposed weaknesses. Instead, he crossed his fingers and flicked them towards Piccolo.
Boom!
A streak of light shot out, and Piccolo's body appeared to be hit with an immensely powerful force. He flew out like a cannonball and crashed onto the ground, almost completely losing his strength.
Lin Chen sighed and approached, placing his hand on Piccolo's chest and using the Power of Creation to heal his injuries.
"It won't work. With your current strength, you can at best fight Majin Buu to a draw."
"Just a draw? Mr. Lin Chen, what if I try 5x... no, 6x Kaio-ken?" Piccolo was somewhat reluctant.
Lin Chen quickly advised, "Don't do anything foolish. 4x Kaio-ken is Namekians limit, and that can't be changed. We need to think of another way. There must be another method to enhance your strength."
The current situation left Lin Chen deeply troubled. Majin Buu's strength was clearly beyond the norm for this era.
Perhaps, apart from Piccolo comprehending the Power of Laws and reaching the divine realm, there was no other way to make him stronger.
But teaching Power of Laws... Except for the Power of Time, all of Lin Chen's other Power of Laws came from the system, so he himself didn't know how to teach it.
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