"Martial arts aren't for winning fights or winning girls' hearts.
Training in martial arts should make you healthier in body and mind, so you can live a happier life."
"But when someone uses force to threaten you,
or hurt others, then you must fight back!!"
"Do you understand?"
Goku scratched his head. "I don't understand at all!"
Master Roshi explained, "What I mean is that you should train hard and enjoy life!"
"Oh, I get it now!"
Krillin glanced at Goku. "Are you an idiot?"
"Enough talk. Training starts now..."
Just then, Krillin suddenly pointed at the sky in alarm.
"W-What's that? It's flying toward us!"
Master Roshi and Goku both looked up.
They saw Son Mirai riding a pillar, speeding toward them with a long trail of afterimages behind him.
Goku exclaimed happily, "It's Son Mirai! Son Mirai's here..."
In the blink of an eye,
the pillar slammed into the sandy ground, spraying sand into all three of their faces. Son Mirai flipped through the air and landed steadily on the ground.
"Sorry I'm late!"
The three of them wiped the sand off their faces.
Krillin asked in confusion, "W-Who are you? How were you riding on a piece of wood just now?"
Anyone with a bit of martial arts experience could tell that making an entrance with Log-Riding Flight was incredibly showy.
Krillin could barely comprehend how strong Son Mirai was.
Goku, however, didn't think much of it and immediately explained to Krillin, "He's the Son Mirai I told you about!"
Krillin exclaimed, "What? So you're Son Mirai! You never told me he was this amazing!"
Master Roshi interrupted their conversation and looked at Son Mirai.
"To become my student, you need to find a pretty girl as a test, but they've already found one..."
Son Mirai immediately pulled out a Hoi-Poi Capsule and tossed it on the ground.
"Poof!"
The capsule opened, and a box sprang out, revealing several bundles of cash.
Master Roshi and Krillin were both startled.
"That's a lot of money!"
He looked Son Mirai over in surprise and asked, "You didn't use your martial arts to rob someone, did you?"
Son Mirai explained, "Bulma's father is the richest man in the world. She gave me all this money.
He said I eat so much that he was afraid I wouldn't have enough food, so this is my tuition and food money. When I run out, I can ask her for more."
"What?"
"Your girlfriend is the daughter of the richest man in the world?"
Son Mirai nodded, then asked, "Can we start training now?"
Master Roshi's mouth twitched. Then he said, "Put it away.
When I take on students, I believe in fate, not money!"
Son Mirai knew Master Roshi was lecherous but not greedy, so he didn't argue and silently put the money away.
In any case, they'd skipped the part where he had to find a girl for him.
Master Roshi led the three of them off to train.
"Let's start with an easy jog. Follow me!"
"One, two! One, two!"
"One, two! One, two!"
One master and three students started running along the riverbank.
Feeling the easygoing atmosphere, Krillin couldn't help indulging in a little self-satisfaction.
"Everyone says Master Roshi's training is brutal, but it doesn't seem like much to me..."
A little later, Master Roshi led them to the Milk Delivery Station.
"Hello, I'm Master Roshi. I called yesterday about delivering milk.
Please give me the addresses and the milk we need to deliver."
So the three of them began their first job of the morning, carrying milk as the day was just beginning.
"For the first house, we'll hop all the way there. Follow me, and don't spill the milk!"
With that, Master Roshi hopped off.
Goku and Son Mirai hurried after him, hopping along.
Having both learned from Son Gohan, they handled it with ease.
Krillin hurried after them too, but he couldn't get the hang of it and spilled some milk.
Master Roshi instructed him, "Krillin, focus on keeping your balance..."
Krillin had been about to argue, but seeing how steady and fast Goku and Son Mirai were,
he immediately began copying them in earnest.
Master Roshi smiled faintly when he saw that.
After finally climbing the stairs and reaching the main road, Master Roshi said,
"Good. Very good.
Next, we'll walk in a zigzag..."
The routine hadn't changed. The training was almost exactly like Son Gohan's: simple and gradual.
However, Master Roshi could tell that Goku and Son Mirai already had some experience, so he soon made them wear heavy Turtle Shells.
And because Son Mirai was clearly stronger, his Turtle Shell was even heavier, yet he still handled it far too easily.
But Son Mirai knew how effective this training was and didn't show any pride or complacency.
On the contrary, he did even better than Krillin and Goku, and trained more seriously.
Krillin was already feeling the strain,
but when he saw Goku and Son Mirai carrying Turtle Shells and still moving faster than he was, he gritted his teeth and persevered.
Before long, they'd finished delivering the milk and plowing the fields.
Master Roshi led them to the Turtle School Classroom.
"All right. From now until lunch, it's time for class."
"To become an excellent martial artist, you have to train your mind, too."
Son Goku looked troubled.
"Oh, I hate this..."
Krillin couldn't help feeling secretly delighted.
"Ha-ha, finally, something I'm good at. I'll win this one for sure..."
But as soon as he thought that, he glanced at Son Mirai.
Even though it was a school subject, Son Mirai seemed much more at ease than he was.
"Teacher, that's not fair! He's so much older than us. He must have learned all this already..."
Son Mirai replied seriously, "I just grew a little taller earlier than most people.
Actually, I'm about the same age as Goku—twelve or thirteen..."
Krillin's mouth twitched. "What are you talking about? Are you trying to fool me?
You have to be at least eighteen..."
Son Mirai pulled out his ID card, which Bulma had helped him get.
"Look, this is my ID..."
Krillin was completely dumbfounded.
They did the same things as in Son Gohan's training: plowing fields by hand, working as laborers, dodging wasps and sharks...
By noon, Goku and Krillin were so exhausted that they collapsed, but Son Mirai wanted to keep going, so Master Roshi called a halt.
Son Mirai turned around and said, "Master Roshi, I still have plenty of stamina. I can keep going..."
Master Roshi raised a hand to stop him. "I know you want to get stronger, and I admire how hard you work.
But training isn't just about 'working out.' You also have to know when to 'rest.'"
He pointed at Son Mirai's muscles. "Your body has already recorded today's workload and techniques,
but it also needs time to absorb them and grow, like a sponge soaking up water.
Pushing yourself too hard will only make your muscles stiff or even cause an injury, which will slow your progress instead."
Son Mirai didn't argue. He nodded and took off the Turtle Shell on his back.
If Master Roshi said so, he must have his reasons.
Soon, Master Roshi helped everyone tie up their hammocks.
"From now until one-thirty, it's nap time!"
Goku, Krillin, and Son Mirai all lay down in them.
Master Roshi said, "Work hard, study hard, play hard, and rest well..."
"That's Turtle School training."
Before you continue