"It's nothing much. I just do push-ups every day, and I had Aunt Bulma build me a Gravity Chamber capable of generating one hundred times Earth's gravity!"
"A Gravity Chamber?"
"That's right, Dad!"
As Gohan spoke, he pulled out a Capsule, pressed the switch, and tossed it onto an empty patch of ground nearby.
With a puff of white smoke, a semi-circular building appeared.
This building was Gohan's Gravity Chamber.
"Dad, this is Aunt Bulma's Gravity Chamber!"
Gohan opened the door and led Goku and Piccolo inside.
Goku looked around the main hall and commented, "Gohan, isn't this just a regular house?"
"Dad, this is the living area. The Gravity Chamber is further inside."
"Oh? Is that so?"
Hearing this, Goku immediately followed Gohan deeper inside.
A moment later, the three arrived at the Gravity Chamber itself.
Gohan briefly explained the facility.
"A maximum of three hundred times gravity?"
"That's right, Dad! If we want to increase it any further, we'll have to ask Aunt Bulma for help."
"It's fine. I can't handle that much right now anyway."
Gohan nodded.
After that, the three began training inside the Gravity Chamber.
Meanwhile, at Goku's house on Mount Paozu.
Chi-Chi was checking the homework Gohan's clone had just finished.
Comparing it with the answer key, she saw that every question was correct.
"That's wonderful, all correct! My Gohan really is the smartest! So, Gohan, what would you like for dinner tonight? Mom will cook it for you!"
"Braised pig trotters, sweet and sour pork ribs…" Gohan's clone listed several of Gohan's favorite dishes.
"Oh, alright! Keep up the good work studying!"
"Mhm." The clone nodded obediently.
Satisfied, Chi-Chi left Gohan's room.
"…What exactly are sweet and sour pork ribs?" the clone muttered quietly.
That evening.
As Gohan's training for the day came to an end, he took out the All-Seeing Mirror to check on things at home.
Through the mirror, he saw Chi-Chi busy cooking in the kitchen.
After confirming everything was fine, Gohan used Instant Transmission to return home and swap places with his clone.
Time flew by, and more than half a month passed in the blink of an eye.
During this period, Gohan trained consistently with Piccolo and the others.
In the North Galaxy.
A massive, disc-shaped spaceship was heading toward Planet Namek.
This ship belonged to Frieza.
After Vegeta's defeat, Frieza learned from his subordinates the true purpose of Vegeta's trip to Earth.
That was when Frieza suddenly recalled that Planet Namek also possessed Dragon Balls, prompting him to personally lead a force there.
Inside the main control room of Frieza's spaceship, Frieza held a wine glass one-third full of red wine in his right hand, gazing calmly into the cosmos.
"How much longer until we reach Planet Namek?"
"To answer you, Lord Frieza," Zarbon replied respectfully, "about ten more minutes."
"Oh."
Frieza responded casually, lifting the glass and taking a sip.
"Lord Frieza," Dodoria asked out of boredom, "since you're personally going to collect the Dragon Balls, what wish do you plan to make?"
Frieza smiled faintly.
"I desire eternal youth, so that I may rule forever."
"I see. That truly is a wonderful wish!"
Frieza gave a small nod.
Meanwhile, on Frieza Planet 79, a world under Frieza's control.
Vegeta's spaceship had already landed.
Vegeta himself was gravely injured and long since unconscious.
Before losing consciousness, however, he had repeatedly muttered the names Goku and Gohan.
With a soft mechanical hum, the spaceship door opened.
Recognizing it as Vegeta's ship, Frieza's soldiers lined up respectfully on both sides.
When the door fully opened, they immediately saw the heavily injured Vegeta.
"Prince Vegeta!"
A squad captain quickly ordered his men to carry Vegeta away for medical treatment.
Back on Earth.
Gohan was in the middle of training when the System's voice suddenly rang out.
"Ding! Congratulations, Master. Your battle power has reached one billion. Rewarding Master with: Space Survival Ability, Shadow Axe, Super Spirit Bomb (can borrow energy from others without raising hands), and 999 Senzu Beans!"
"The Shadow Axe?"
As the System spoke, memories related to the Super Spirit Bomb flooded Gohan's mind.
A purple axe appeared in the System's item slot, and the number of Senzu Beans increased from 88 to 1,087.
"System, why are you giving me an axe? Is it for chopping wood?"
"Ahem!" The System cleared its throat. "Master, this Shadow Axe can slice through metal like butter. It is an extremely powerful combat weapon!"
"But I don't like using weapons."
"That's fine, Master. The Shadow Axe can fight enemies even without you personally controlling it."
"Without me controlling it?"
"Yes. It is the most advanced battle axe. It will eliminate anyone the Master orders it to kill!"
"That's incredible."
"Of course it is!"
Hearing this, Gohan immediately retrieved the Shadow Axe.
Despite weighing a thousand pounds, it felt completely weightless in his hands.
"Shadow Axe, cut down that tree in front of me."
Gohan pointed at a large tree.
At his command, the Shadow Axe swung forward.
With a soft sound, the tree fell instantly.
"Not bad. Shadow Axe, can you chop down ten large trees at once?"
The Shadow Axe spun in mid-air, instantly splitting into ten identical axes.
They swung simultaneously.
With a series of soft sounds, all ten trees collapsed.
The axes then merged back into one, like a phantom.
"Shadow Axe, what's the maximum number you can split into?"
The Shadow Axe spun once more in the air.
More than a hundred Shadow Axes appeared, neatly arranged in ten rows.
"One hundred."
The axe tilted forward slightly, as if nodding.
At that moment, the System's voice rang out again.
"Master, Frieza and his group have already departed for Planet Namek. They will arrive in about one minute."
"Alright, I understand."
Gohan immediately plucked a strand of hair and created a clone, instructing it to stay behind.
Then, using Instant Transmission, he vanished and appeared in a village on Planet Namek.