DUAL GATES THE WORLD FROM THE PROGRESSOR

Chapter 4: One month surviving hellish training!

On the first day after resting for the day before, Kazuki was ready to train his body. However, he didn't want to exercise normally like most people do. Instead, he wanted to train his body by learning how to use weapons like the ancient emperor in the palace!

Despite weighing 150 kg and standing at a height of 174 cm, Kazuki was determined to achieve his goal by the end of the month.

The first weapon he decided to learn was the spear, which he studied by reading martial arts books.

Despite his injured left hand, he was able to learn and practice the techniques.

"I'm ready to start. Let's do this!" said Kazuki.

[...Yes.]

Kazuki then demonstrated spear techniques repeatedly, even with just one hand.

Stab! Stab! Stab!

Stab! Stab! Stab!

Stab! Stab! Stab!

Kazuki continued practicing the techniques until it got dark, switching to different techniques along the way.

***

"Hahh... Hahh... Hahh... This is really tiring, but also fun!" he exclaimed as he put the weapon back in its place.

After taking a quick shower, he immediately started cooking using the ingredients he bought from the convenience store.

Kazuki cooked a lot of vegetables and meat, and only ate a small amount of carbohydrates, which was a potato.

As he stared at the food he was cooking, Kazuki felt grateful to be able to eat such delicious food.

"Enjoy your meal!" he said to himself before diving into the food with gusto.

***

Since the time difference between this world and Kazuki's previous world was different, when it was night in the other world, the sun had already risen on earth.

Looking at the wide expanse of grass in front of his grandfather's dojo mansion, Kazuki nodded with satisfaction.

"Okay, it's time to train here!"

Instead of practicing with the spear, Kazuki decided to train like a normal person.

"Alright, let's push my body to its limits!" Kazuki was determined to lose weight.

He then started running around the 4-acre yard from one end to the other as long as he could, testing his endurance.

***

One round, two rounds, three rounds...

Ten rounds, fifteen rounds...

Twenty rounds, thirty rounds...

Fifty rounds, one hundred rounds...

One hundred and fifty rounds...

Two hundred rounds...

Although Kazuki had lost count of how many laps he had run due to his excitement, he knew for sure that he had surpassed his usual limit.

"Hahh... Hahh... Hahh... I ran for such a long time!" he exclaimed, realizing that it was already afternoon.

Normally, he could only circle the courtyard three times at most, but this time, he had far exceeded his limits.

"Tens...? Or maybe hundreds...? I didn't count..." Kazuki mused while walking around with sweat-soaked clothes. He was starting to feel the effects of his workout, but he was also curious about how much weight he had lost.

With his fat body, he stepped on the scales that his grandfather had bought two months before his death.

Krekkk...

"How much weight did I lose?" Kazuki was anxious to know.

After a while, the numbers finally appeared.

{139 kg}

Seeing that figure, Kazuki was flabbergasted.

"I lost 11 kg?!!! So fast?!!!" he exclaimed in surprise. It was a pleasant surprise because it meant that he could cut down the time it would take to slim down his body.

However, he was still curious about why he lost weight so quickly, so he went to another world and asked the system.

"Hey, do you know why I lost so much weight?"

[...Your metabolic rate will increase by 10 times if you really want it like you are right now.]

"Means...?" Kazuki asked.

[...It means that your body will burn fat 10 times faster than usual.]

Upon hearing this answer from the system, Kazuki couldn't help but smile with delight.

"Kuhuhuhh... Kuhahahahahhahaahhhh!!!!" he burst out laughing.

Kazuki was overjoyed to hear this information.

"I can use the other time to increase my strength!" he declared.

***

"Zzzzzz... Zzzzzz... Zzzzz..."

Previously, after asking the system in another world, Kazuki had lain down in his room for a while and had unknowingly fallen into a deep sleep due to exhaustion. After all, it was already nighttime on Earth, so the atmosphere was perfect for resting.

By the time he opened his eyes, the sun had already risen, and Kazuki began to wake up slowly.

Yawn...

"Hoam..."

Glancing at the window, Kazuki saw that it was already morning.

“Ah, damn, I overslept…”

Even so, he did not regret it, as he knew that his body also needed rest, even though it could be very durable during training.

"Alright, let's continue this training!"

Kazuki then went about his morning activities before heading out to run around the dojo's courtyard again.

This time, he decided to only focus on the most efficient way to lose weight, which was by running around the courtyard.

***

Three weeks had passed.

Swing!

"9,998!"

Swing!

"9,999!"

Swing!

"10,000!"

"Hahh... Hahah... Hahah..."

A young man with an extremely athletic build, black hair soaked with sweat, emanating a masculine aura that appealed to women.

"Finally, I can complete ten thousand swings within an hour!"

He was Kazuki, a chubby youth who had now turned into a handsome young man after going through hellish training for three weeks.

Kazuki had lost weight within two weeks, but since his skin was still quite loose, he trained himself further until his skin tightened and his muscles grew quite large.

His body, now muscular but filled, was in stark contrast to his previously fat and ugly one.

"I'm sick of being bullied every day... I want to change!"

That was the reason he always thought of when he was about to give up on his training. He had also learned all the techniques that he previously wanted to learn. Even though there was no real opponent to demonstrate them, Kazuki could still apply them in real combat. After all, he had once been taught the basics of fighting techniques by his grandfather.

Every day, Kazuki increased the intensity of his previously insane training, becoming even crazier instead!

Kazuki challenged himself every day to do everything he did to the best of his ability, lest he reduce the intensity of his training! After all the craziness, now the results were clearly visible.

The body that previously stood at a height of 174 cm, now had changed to 187 cm. Even though Kazuki was confused by the change, he didn't really want to think about it. The most important thing was that he used to weigh around 150 kg, but now he had dropped to 74 kg!

A significant reduction indeed!

"Sanada-san will definitely be surprised when he sees me this time," Kazuki muttered with a wry smile as he thought about it.

Looking at his body in the bathroom mirror, he felt that all his hard work had finally paid off.

"Six-pack abs with muscles like this athletic bodybuilder... It's really worth it," he said with pride radiating from his face.

But it wasn't his body that surprised him the most, it was his face!

"... I didn't realize all this time that I have such a handsome face...!" When Kazuki said that, he started to remember the faces of his little brother and his parents.

"Well... It might just be a genetic factor..." Besides, all of his family members, except for him, had pretty faces.

Throwing away all those thoughts, he put on a towel and headed towards his room to put on his clothes. However, when he put on his clothes, he realized that they didn't seem to fit him anymore.

"I forgot that my body size changed..."

Previously, when he was practicing, he always used karate clothes whose size could be adjusted. But now...

Glancing at his wardrobe, he also noticed that he didn't have the right size.

"Eishh... Really...?" Kazuki sighed while looking at his wardrobe. Does he have to wear clothes that don't fit him to go out?

"It doesn't matter if I'm embarrassed to wear this or not, but if these baggy clothes slide down when used in public, I might be arrested by the police and labeled a pervert..." Kazuki wanted to avoid that no matter what. He didn't want to be labeled as such no matter what.

"Then... Does Grandpa have clothes that fit me...?" Kazuki was curious about that, so he decided.

"Alright, let's just look for it first!"