I, Kizaru, only came to the chat group after I became invincible

Chapter 466 Adaptation Training
He improved Lavala's water supply system, making the water pressure more stable and the coverage wider. He designed a new type of agricultural irrigation device that could automatically adjust the water volume according to soil moisture. He also improved the structural design of buildings, making them more wind-resistant and saving on materials.

Every improvement was practical and directly improved the lives of the Lavala people. The artisans learned from Frankie not only the specific techniques but also the design concepts and innovative thinking.

"Frankie, why are you so good at these things?" Tony asked curiously one day.

“Because I’ve loved building things since I was a kid,” Franky recalled. “And my mentor, Tom, taught me that the essence of technology is to make people’s lives better.”

“To make people's lives better,” Tony repeated. “That really is the true meaning of technology.”

“That’s right!” Franky gave a thumbs up. “Technology isn’t for showing off, it’s not for destruction, it’s for creation and improvement.”

Under Frankie's influence, the artisans of Lavala also began to change their mindset. They were no longer content to repeat the techniques of their ancestors, but began to think about how to innovate and how to improve.

The atmosphere in the workshop became more lively. The artisans often gathered to discuss new ideas and try out new designs. Some ideas failed, but that was okay; failure is part of learning. Some ideas succeeded, and everyone celebrated together before continuing to improve.

One evening, as Frankie was preparing to finish work and return to the ship, the craftsmen gathered together and gave him a surprise.

“Frankie, this is a gift for you.” Tony led the way, and the other craftsmen brought out an exquisite model.

That was a model of the Thousand Sunny, made entirely of pumice and other precious materials, with every detail meticulously crafted.

"This is..." Franky was somewhat moved.

“We wanted to express our gratitude with this model,” the elder craftsman said. “Thank you for your guidance these past few days, and thank you for teaching us the true meaning of the craft.”

“Thank you.” Franky took the model and examined it carefully. “It’s really exquisite.”

“We also installed special mechanisms inside the model,” a young craftsman said. “Look here.”

He pressed a button on the bottom of the model, and the model ship suddenly unfolded, revealing its complex internal mechanical structure. Every room and every device was perfectly replicated.

"That's amazing!" Franky exclaimed. "Your skills are truly remarkable!"

“This is the best we could do,” Tony said modestly. “I hope you like it.”

“Of course I love it!” Franky exclaimed excitedly. “It’s one of the best gifts I’ve ever received!”

As night fell, Franky returned to the Thousand Sunny with the model. The other crew members were full of praise for this exquisite gift.

“The artisans of Lavala are so dedicated,” Nami said.

“Yes.” Franky carefully placed the model in the display case in the captain’s cabin. “I’ve learned a lot from talking with them these past few days.”

“You taught them the skills, and they gave you their friendship,” Robin said gently. “That’s true communication.”

“And we’ve all heard about your refusal to design weapons,” Sauron said. “Well done.”

“Of course,” Franky said. “I have principles!”

“Your principles are remarkable,” Borsalino said slowly. “Technology itself is neutral, but those who use it must have a conscience.”

“That’s right!” Luffy nodded. “Franky is the best shipwright on our ship!”

"Hehehe, I'm so happy to hear the captain's praise!" Franky struck his signature pose.

Outside the window, the lights of Lavala twinkled. In this city in the sky, a technological exchange had quietly changed many things. Franky brought not only advanced technology, but also innovative thinking and the right technological concepts.

And these will play an even greater role in Lavala's future.

The next day, the first batch of newly produced aircraft was displayed in the square. Ten brand-new aircraft were neatly arranged, attracting a large number of residents to watch.

"These are the new types of aircraft?"

"It looks so beautiful!"

"I heard the performance is much better than before!"

A brief commissioning ceremony was held, presided over by the elders. Then, ten highly trained pilots simultaneously took to the air in the new aircraft, performing a spectacular aerial display.

"It's so flexible!"

"So fast!"

"And it can even do such complex movements!"

The crowd watched intently, occasionally letting out gasps of amazement.

After the performance, Elder Alva gave a speech in the square.

"Fellow countrymen!" his voice boomed. "Today is a significant day in Lavala's history. With the help of our foreign friends, our technology has reached a new level!"

“These new aircraft are just the beginning,” Alva continued. “We will see many more technological improvements in the future. Transportation, agriculture, construction, and every aspect of life will become better!”

“But we must remember,” his tone turned serious. “Technology is meant to benefit people, not harm them. We must learn from Mr. Franky and be principled and conscientious technology workers!”

The crowd responded with enthusiastic applause.

While Franky was busy helping the Lavala craftsmen improve their techniques, Borsalino was also carrying out his own activities on the island. As a former admiral, he maintained his daily training habits even while traveling.

At dawn, as the first rays of sunlight touched Lavala, Borusalino had already arrived at an open space on the city's edge. The open view and distance from the crowds made it an ideal training ground.

He began with his usual warm-up exercises, but soon noticed something was wrong.

“Breathing…is a little difficult,” Borsalino muttered to himself.

This is not a sign of physical weakness, but a natural reaction to the high-altitude environment. Located at an altitude of 1,000 meters, Lavala Island experiences air density only about 90% of that at sea level, resulting in a corresponding reduction in oxygen levels.

Ordinary people would feel short of breath and easily fatigued in such an environment. But for well-trained soldiers, it is an excellent training environment.

“Interesting,” Borsalino said thoughtfully.

He attempted to practice a complete sword technique. Although he primarily relied on his Devil Fruit abilities in combat, swordsmanship was also one of his strengths as a Marine Admiral. His sword, "Ama-no-Murakumo-no-Tsurugi," was formed from condensed light, but its usage techniques were consistent with real swordsmanship.

After completing the set of movements, he clearly felt that it was more strenuous than usual. Each swing of the sword required deeper breathing, and each movement consumed more physical strength.

But at the same time, he also felt his body rapidly adapting to the environment. His lungs were working harder to absorb more oxygen, his heart was beating more strongly, and his muscles were operating at a higher intensity.

“If we train in this environment,” Borsalino’s eyes lit up, “the results should be much better than usual.”

It's a simple principle—training in harsher environments leads to a significant improvement in physical performance upon returning to normal conditions. This is similar to why athletes train at high altitudes.

Lavala Island is naturally a high-altitude training ground.

Borsalino continued training, trying to adapt to the environment. As time went on, his breathing gradually stabilized, and his movements became more fluid.

Just then, a familiar figure appeared at the edge of the training field.

"Uncle Kizaru, are you practicing swordsmanship?" Zoro walked over, carrying three swords on his back. "Oh, Zoro," Borsalino stopped what he was doing. "You're training too?"

“Of course,” Zoro said. “As a swordsman, you’ll get rusty if you don’t practice for a day.”

“That’s perfect.” Borsalino smiled. “I’ve just discovered that the training here is quite effective.”

"Special?" Zoro looked at him in confusion.

“You’ll see when you try it,” Borsalino said. “Swinging a sword here feels completely different from swinging it on the sea.”

Zoro drew Wado Ichimonji, got into a fighting stance, and then swung his sword.

The strike looked unremarkable, but Zoro immediately sensed something was different. His breathing became rapid, and the fluidity of his movements was affected.

“Indeed…it’s different,” Zoro said in surprise. “It feels like wielding a sword while carrying a heavy load.”

“This is the effect of high altitude,” Borusalino explained. “The air is thin, the oxygen content is low, and the body needs to work harder to maintain the same movements.”

"I see." Zoro seemed thoughtful, then a glint of excitement flashed in his eyes. "So, training here is more effective?"

“That’s right.” Borsalino nodded. “If you can adapt to this environment, your speed, strength, and endurance will all improve significantly when you return to normal.”

"Great!" Zoro exclaimed excitedly. "I'm going to make the most of this opportunity!"

“But be careful,” Borsalino cautioned. “Overtraining can cause injury. Proceed gradually.”

“I understand.” Zoro nodded, then looked at Borsalino. “Uncle Kizaru, want to spar with me?”

"Sparring partner?" Borsalino raised an eyebrow.

“Yes,” Zoro said earnestly. “After seeing your swordsmanship duel with those guards in the Red Line Kingdom, I’ve wanted to spar with you ever since.”

Borsalino was silent for a moment, then slowly smiled.

"Alright. But I must warn you, my swordsmanship is no joke."

"I couldn't be happier!" Zoro drew his three swords and assumed the Three-Sword Style stance.

The two faced off on the training field, and the atmosphere suddenly became serious.

“Then…” Borsalino raised his right hand, and golden light condensed into the shape of a sword. “The Kusanagi Sword.”

A dazzling lightsaber took shape in his hand, about 1.2 meters long, radiating a soft yet intense golden light.

“Come on,” Borsalino said.

Zoro didn't hesitate and charged straight in.

"Three-Sword Style - Demon Slash!"

Three swords slashed at Borsalino from different angles with lightning speed. But Borsalino simply raised his sword to parry with nonchalant ease.

"Qiang!"

The swords clashed, producing a crisp metallic clang. Although the Kusanagi Sword was formed from condensed light, its hardness was in no way inferior to real steel.

"Not bad speed," Borsalino commented. "But how long can you maintain that in this environment?"

Zoro didn't answer, but continued his attack. One strike after another, his moves relentless.

But soon, he felt his strength waning. At high altitudes, each swing of the sword required more oxygen, and each movement consumed more energy.

Just five minutes later, Zoro began to gasp for breath.

“It seems you haven’t adapted to this environment yet,” Borsalino said, his breathing still steady.

"Again!" Zoro stubbornly continued his attack.

Borsalino began his counterattack. His swordsmanship was elegant yet deadly, each strike precisely targeting the weaknesses in Zoro's attacks.

“Your stance is too open,” Borsalino advised while attacking. “With limited oxygen, you need to focus more on defense and reduce unnecessary movements.”

"Three-Sword Style - Gyūki Heroic Claw!"

Zoro unleashed a powerful attack, but Borsalino merely dodged it to the side, then pointed his sword directly at Zoro's throat.

“Dead.” Borsalino said calmly.

Zoro stopped moving, panting heavily. His clothes were soaked with sweat.

"Your swordsmanship is even better than I imagined," Zoro admitted.

"It's just the accumulation of many years." Borsalino sheathed the Kusanagi Sword. "However, your foundation is solid, just not refined enough."

"Please teach me!" Zoro suddenly bowed. "I want to become stronger!"

Borsalino was somewhat surprised, but quickly understood Zoro's determination. This young swordsman had an almost obsessive pursuit of becoming stronger.

“Alright.” Borsalino nodded. “Since you’re so sincere, I’ll practice with you properly.”

"Really?" Zoro's eyes gleamed with excitement.

“But,” Borsalino said seriously, “my training is very rigorous. You must be prepared to endure hardship.”

"I'm not afraid of hardship!" Zoro said firmly.

“Alright,” Borsalino said. “Starting today, we’ll begin special training. The goal is to enable you to perform at your normal level, or even surpass it, at high altitudes.”

And so, Borsalino and Zoro's special training began.

The first day was mainly for getting used to the training.

Borsalino had Zoro practice basic sword swings, but with extremely high standards.

“Swing the sword a thousand times,” he said. “Each time, maintain the correct posture and breathing rhythm.”

"A thousand times?" Zoro thought it was too much, but he accepted it nonetheless.

He began to swing his sword, once, twice, ten times, a hundred times.
But at high altitudes, this seemingly simple task became exceptionally difficult. Each swing of the sword required a deep breath to replenish oxygen. By the time he had swung it five hundred times, Zoro felt his arms were as heavy as lead.

“Hang in there,” Borsalino said, watching over him. “Breathe deeply and slowly, don’t rush.”

Zoro gritted his teeth and persevered, continuing to swing his sword. Six hundred times, seven hundred times, eight hundred times.
By the time he had swung the ball nine hundred times, his arms had begun to tremble, and sweat blurred his vision.

(End of this chapter)