Uchiha Puppet Master, Starting from One Piece

After several rounds of drinks and several dishes, the atmosphere in the courtyard became increasingly lively.

Matsumoto Rangiku, her cheeks flushed, was holding a sake bottle and playing drinking games with the female sailors of the Hachipo Navy. Her clear laughter mingled with the clinking of the sake bottles, echoing through the quaint courtyard.

Connor held a plate of red bean pastries, his little cheeks bulging, the icing on his lips glistening in the sunlight. He would occasionally glance up at Bai Yu, and seeing that he was also eating and drinking, he would bury his head in his food and eat even more happily.

Green Pepper put down his wine glass, tapped his knuckles on the table, and glanced at the members of the Eight Treasures Navy standing solemnly in the courtyard before finally settling on Bai Yu. His aged voice carried a weight of experience from weathering many storms: "I have lived for decades, wandering the seas and seeing countless powerful figures. In the end, those who can stand firm on this sea all rely on four things: three kinds of Haki and Devil Fruits."

Upon hearing this, Nico Robin and Matsumoto Rangiku looked up, a hint of curiosity flashing in their eyes. They had heard Bai Yu mention it, but Bai Yu only knew the general outline, so they both nodded slightly: "We would like to hear more details."

"The first type is Observation Haki."

Green Pepper downed a mouthful of strong liquor, his Adam's apple bobbing, his voice suddenly rising in pitch; he was clearly in high spirits from drinking too much.

"This Observation Haki is like hearing the wind and observing the rain, it's like seeing into people's hearts! In the Grand Line, this sea with its unpredictable weather and teeming with powerful individuals, Observation Haki is the foundation of survival! It allows you to predict your opponent's moves, sense hidden killing intent, and some special types can even hear the breath of the sea, thus avoiding sudden storms and tsunamis!"

He paused, his gaze sweeping over Cai Yi, a hint of reminiscence flashing in his eyes: "When I was young, I relied on my superb Observation Haki to survive the turbulent waves of the New World."

Upon hearing this, Cai Yi quickly chimed in, "Dongliang is right! The first lesson for the disciples of my Eight Treasures Navy is to cultivate Observational Color! In the mountains and forests of the Flower Country, we listen to the language of birds and beasts and sense the breath of plants and trees; this is how we train our keen perception."

"Haha, my grandson is good in every way, except he looks a bit older than his age, so no one has taken a liking to him yet."

Bai Yu held the wine glass, his fingertips gently swirling it, causing ripples to spread across the glass.

Unlike the Sharingan of the Uchiha clan, Observation Haki is also a powerful tool for discerning the future. However, compared to the perception of Observation Haki, the Sharingan is more inclined to observe and then make predictions.

Green Pepper stroked his beard and looked at Matsumoto Rangiku and Nico Robin: "The second one, Armament Haki, is also something you need to learn to enter the Grand Line, otherwise you'll find it difficult to make any progress in the New World."

"This domineering aura is like an impregnable fortress, a blade that can shatter the enemy!"

A drunken Green Pepper slammed his hand on the table, making the bowls and chopsticks vibrate loudly: "The pirates of the Grand Line are full of Devil Fruit users! Their techniques are incredibly diverse, and many are impervious to swords and spears, and water and fire! But Armament Haki allows you to wrap your body in Haki, turning it into an invisible armor to withstand attacks from Devil Fruit users. It can even be used to imbue weapons with Haki, tearing apart those seemingly invincible defenses!"

He pointed to his head, a hint of pride flashing in his eyes: "Back then, I shattered an iceberg with my Armament Haki! No matter how arrogant those Devil Fruit users were, they had to admit defeat when faced with Armament Haki that had been cultivated to its peak. It's a pity that if it weren't for that guy Garp back then... I..."

Seeing the green peppers brought back memories of the past, and she burst into tears. Cai Yi quickly chimed in.

"My Eight Treasures Navy's Eight-Strike Fist incorporates Armament Haki into its fist techniques; one punch can shatter stone and split gold!"

Cai Yi clenched his fist, his tone full of pride: "Those imposters haven't even scratched the surface of Armament Haki, yet they dare to swindle and deceive people using our name."

"As for the third one..."

Green Pepper abruptly changed the subject, his voice suddenly lowering and carrying a hint of murderous intent as he swept his gaze across everyone in the courtyard.

"One in a million, the bearing of a king, the aura of a conqueror!"

"This domineering aura has nothing to do with cultivation; it's solely due to innate talent!"

Green Pepper's tone was arrogant: "Those who possess Conqueror's Haki are born with the potential to be kings. They can subdue their enemies without fighting. In the Grand Line, Conqueror's Haki is a symbol of status and a powerful weapon to intimidate heroes. Once awakened, one can rely on their own aura to intimidate the weak and even directly knock out those weak-willed soldiers."

He paused, looked at Bai Yu, his eyes burning: "In my entire life, I have only seen a handful of people possess Conqueror's Haki."

Cai Yi, flushed with the effects of the alcohol, slapped his thigh and stood up, staggering to the center of the courtyard. He shouted at the top of his lungs, "What are you all standing there for! It's rare for Dongliang to be in such a good mood today, so I'll give you bunch of brats a chance to show off your skills."

Several of the Eight Treasures Navy's underlings dared not delay and quickly carried over several thick wooden stakes, which were then firmly placed in the open space of the courtyard.

Cai Yi wiped the wine stains from the corner of his mouth, rolled up his sleeves to reveal his muscular arms, and roared at his subordinates, "How do you train Observation Haki? Don't listen to those fancy tricks. Remember, clear your mind of distractions and let your senses merge with your surroundings."

As he spoke, he closed his eyes, his chest rose and fell slightly, and his aura suddenly became peaceful.

The wind in the courtyard brushed against his hair, the leaves rustled, and everything seemed to become part of his perception.

"When you train in combat to a certain level, you will have the opportunity to awaken this power."

Cai Yi suddenly opened his eyes and pointed: "When you practice in the mountains and forests, you should keep an eye on the birds and beasts and be able to predict their movements. That means you've mastered the basics of Observation Haki."

Several members of the Eight Treasures Navy nodded in agreement, and one of the younger ones couldn't help but ask, "Captain, how can we make our Observation Haki even more acute?"

"Idiot!" Cai Yi raised his hand and gave him a flick on the forehead.

"Only through countless battles, only by licking blood from the edge of a knife, can your senses be pushed to their limits. Back when I was being chased and hacked down by a group of pirates, it was then that my Observation Haki suddenly awakened, allowing me to dodge a stray arrow from behind!"

As he spoke, he pointed to the wooden stake and then changed the subject: "Let's talk about Armament Haki. This thing is even more troublesome than Observation Haki."

"First, train your body to make it strong so that you can bear the aura of dominance."

Cai Yi slammed his fist into the wooden stake, and with a crack, a fissure appeared on the stake.

"Then you need to concentrate your mind and energy, sense the special power within your body, and guide it to your fist! At first, you might only have a trace of it, don't rush, practice slowly. When you can cover your fist with a layer of black film, you've entered the first stage."

As he spoke, he took a deep breath, and a faint black sheen slowly appeared on his arm. He clenched his fist and slammed it into another wooden stake.

With that punch, the wooden stake snapped instantly, sending splinters flying.

"See that? That's the power of Armament Haki!"

"Want to make your Armament Haki stronger? Then fight more and get beaten up more! Infuse your Haki into every punch and every block, and over time, your Haki will naturally become more and more profound."

The underlings in the courtyard watched with shining eyes, rubbing their hands together, eager to try their luck.

Bai Yu sat at the table, his gaze fixed on Cai Yi's actions, a knowing glint in his eyes.

He recalled the Chakra Lightning Release Armor, which, although belonging to a different system from this Haki cultivation, shared a similar principle: both involved condensing the power within the body and then releasing it externally.

"I see. Observation Haki and Armament Haki are really useful."

Sitting in the main seat, Green Pepper watched Cai Yi earnestly instructing his underlings, then glanced at Bai Yu and the other two who seemed lost in thought, and couldn't help but burst into laughter: "How about it? My grandson's cultivation method may be a bit rough, but it's all solid experience. In the Grand Line, these things are more useful than any secret manual."

Bai Yu raised his eyes and looked at Qingjiao: "I have indeed benefited greatly."

Just then, Cai Yi remembered something and roared at his subordinates, "There's one more thing: the most important thing in cultivating domineering aura is willpower. If you're not even afraid of death, your cultivation will progress very quickly."

Before he could finish speaking, his legs suddenly gave way, the alcohol taking its toll, and he collapsed to the ground, muttering, "Remember... willpower... is the most important..."