After Trunks left, Son Goku gathered everyone to ask how their training was going.
Son Goku looked at Piccolo. "Piccolo, have you adapted to the three-hundred-times Gravity Room yet?"
"Son, I've fully adapted to three hundred times gravity," Piccolo said. "I can already use Hundredfold Kaioken. The Gravity Room isn't doing much for me anymore."
Son Goku nodded, then asked the others about their progress.
Vegeta, Son Goshin, and Son Gohin had all conquered the three-hundred-times Gravity Room. All three could use Hundredfold Kaioken and transform into Super Saiyans.
Raditz and Nappa had also conquered the three-hundred-times Gravity Room. They had only recently learned to transform into Super Saiyans, and both could use Hundredfold Kaioken.
Krillin, Tien Shinhan, and Yamcha had just adapted to one hundred times gravity and still needed to spend more time training in the hundred-times Gravity Room. All three could use Twenty-Fold Kaioken, bringing their power levels into the tens of millions.
Chiaotzu had only just adapted to eighty times gravity. He could use Fifteenfold Kaioken, bringing his power level to six million.
Son Goku knew that Krillin, Tien Shinhan, Yamcha, and Chiaotzu were improving far too slowly compared to the Saiyans and Piccolo. But they were all friends, and he would help them wherever he could.
So he told the four of them, "Your next training plan is still to train in the Gravity Room and adapt to higher gravity."
"Got it, Goku," Krillin said.
Son Goku nodded, then told Vegeta, Son Goshin, Son Gohin, Raditz, and Nappa, "Your next step is to train Super Saiyan 1 to full power, then attempt the Super Saiyan 2 transformation."
Vegeta nodded. "Kakarot, understood. I'll reach Super Saiyan 1 full power as soon as possible, then transform into Super Saiyan 2."
Son Goku nodded, then turned to Piccolo. "Piccolo, your training will still focus on adapting to higher gravity."
"Son, I've already adapted to three hundred times gravity," Piccolo said. "There aren't any Gravity Rooms here that go higher than that."
Son Goku smiled. "Piccolo, didn't you used to train in Weighted Clothing?"
Piccolo considered it for a moment, then his eyes lit up. "Son, you mean I should wear Weighted Clothing and keep training in the Gravity Room?"
Piccolo really does deserve his reputation as the brains of Dragon Ball, Son Goku thought. All I did was mention Weighted Clothing, and he immediately figured out the key.
"Exactly, Piccolo," he said. "In a little while, we'll ask Shenron for a few sets of Weighted Clothing with adjustable gravity multipliers. Put them on and keep training in the Gravity Room."
Piccolo nodded.
"All right," Son Goku told everyone. "Now that we've settled on a plan, let's all train hard. When the Androids appear three years from now, we'll give them a huge surprise."
At that, sly grins spread across everyone's faces.
Afterward, everyone began their respective training.
After gathering the Dragon Balls, Son Goku wished to Shenron for six sets of Weighted Clothing. Each could reach a maximum of three hundred times Earth's gravity, exactly like the set Son Goku already had.
Son Goku handed them to Piccolo, Vegeta, Son Goshin, Son Gohin, Raditz, and Nappa.
Everyone adjusted the clothing to fit, put it on, set the gravity multiplier, and threw themselves into training.
Half a year later, Vegeta, Son Goshin, and Son Gohin successfully brought Super Saiyan 1 to full power and began attempting the Super Saiyan 2 transformation.
Son Goku told the three of them the key to transforming into Super Saiyan 2. After three attempts, Vegeta successfully transformed.
Son Goshin and Son Gohin, however, failed despite numerous attempts.
Son Goshin asked Son Goku, "Father, why did Uncle Vegeta succeed after just three tries, while my brother and I still haven't managed it after so many attempts?"
Son Goku smiled. "You two kids-has anything ever made you furious beyond all limits?"
The two shook their heads. Their lives had always been smooth sailing, without any real hardship. How could they feel such overwhelming rage?
"Without that extreme anger, you naturally can't use this method to transform into Super Saiyan 2," Son Goku said.
"Then what should we do to become Super Saiyan 2, Father?" Son Gohin asked, his eyes wide.
"Raise your base power level," Son Goku said. "Once it reaches a certain point, you'll naturally be able to transform into Super Saiyan 2."
"Oh, so that's how it works. We understand, Father," Son Goshin said.
Son Goku nodded. "Go on, then. Get back to training."
The two nodded and went off to train. In the days that followed, their daily routine consisted of going back and forth between the Gravity Room and their rooms.
Five months later, Son Goshin and Son Gohin conquered the three-hundred-times Gravity Room, their base power levels reaching an astonishing five hundred million.
Then, with everyone watching, the two let out a mighty roar and successfully transformed into Super Saiyan 2.
Vegeta was dumbstruck at the sight. These half-breeds have incredible talent. Looks like I need to do my part to keep the Saiyan race going, too.
Nappa and Raditz had the same thought.
Son Goku was delighted that both boys could now transform into Super Saiyan 2. Compared to Son Gohan in the original story, they had not only achieved the transformation two years earlier, but were also considerably stronger.
Son Goku believed that under his guidance, neither boy would ever end up like the slacker Gohan.
Afterward, everyone threw themselves back into training.
Everyone except Son Goku. Over the next month, he would welcome his other three children into the world.
A month later, Chi-Chi gave birth to a boy. After much deliberation, Son Goku named him Son Goten.
Two days later, Bulma gave birth to twins, a boy and a girl. The boy was named Son Kesi, and the girl Bulla.
After that, Son Goku trained for only half the day, spending the other half with Chi-Chi, Bulma, and the two children.
Three months later, Piccolo successfully conquered the three-hundred-times Gravity Room. His base power level reached three hundred and fifty million. Most importantly, he could now use Three-Hundredfold Kaioken, bringing his power level into the hundreds of billions.
Piccolo sought out Son Goku. "Son, what do I do next? I've fully adapted to the three-hundred-times Gravity Room."
Son Goku smiled. "Piccolo, next I'll teach you the method for cultivating godly power. You can start training in that."
"What's godly power?" Piccolo asked, puzzled.
"Cultivating godly power can raise your level of existence and increase your strength," Son Goku said. "But unlike ordinary training, it requires gradual progress. It won't do much for your strength in the early stages."
"I see. All right, then," Piccolo said.
Son Goku nodded, then touched a finger to Piccolo's forehead. A new cultivation method instantly appeared in Piccolo's mind.
Then Son Goku sent Piccolo off to train.
Before you continue