Sailing: His comprehension is against the sky, and he comprehends the Eight Gates at the beginning.

Sailing: Incredible Comprehension, Mastering the Eight Gates at the Start Author: Boiling Point Ninety Degrees

He traveled through the world of pirates, replaced the unborn Luffy, and gained a natural talent for comprehension.

Since then, Luffy has created all kinds of incredible abilities.

"Your comprehension is extraordinary. Through visualization and understanding, you have mastered the unique skill - Eight Gates of Ninjutsu."

"Your comprehension is extraordinary. Through visualization and understanding, you have realized - Domineering Haki - Entanglement."

"Your comprehension is extraordinary. Through personal visualization and understanding of transmission, your transmitter has mastered a unique skill - the Transformation of Buddhahood."

"You have an incredible comprehension ability. Through meditation, you have mastered a special combined skill - Gear Five - Nika Yekai."

......

In the Battle of Marineford, Luffy led the new Straw Hat Pirates to join the battle.

Nika Night Kai Luffy, Demon Nine Swords Style Zoro, Demon God Wind Leg Sanji, Top Buddha Robin...

When the Straw Hat Pirates appeared, the whole world was shocked...

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Chapter One: Extraordinary Comprehension, Comprehending the Eight Gates Formation

"It's so dark."

"I can't move my body."

"I'm surrounded by water, am I drowning?"

Sensing his surroundings, Wang Lufei instinctively began to struggle.

"Hey! Luffy, are you awake?"

Suddenly, a pleasant female voice rang in his ears, and Wang Lufei immediately calmed down and listened carefully.

"No, Luffy. If you do that, it will hurt Mommy a lot."

"Now that Dad isn't around, you can't bully Mom. You have to be a good girl and listen to me!"

"Just be patient a little longer, you'll be born in a few months."

!!!

The woman's words startled Luffy.

"Am I traveling through time?"

"And I even transmigrated into the body of an unborn baby."

At that moment, the woman's voice rang out again.

"Oh, right, Luffy."

"Mom forgot to tell you."

"Your name is Monkey D. Luffy."

"This was your father, Monkey D. Dragon, and your mother came up with it together!"

"..."

!!!

Luffy was shocked once again.

Monkey D. Luffy, Monkey D. Dragon, aren't these characters from the One Piece world?

He actually traveled to the world of One Piece and became Luffy, the protagonist with the same name as him.

He recalled Luffy from the original work.

With exceptional talent, powerful bloodline, and profound background, he can be described as the chosen one.

Luffy was naturally extremely excited to be able to travel through time and become such a character.

However, there are many regrets regarding Luffy in the original work.

He watched as Uta, Ace, and the Going Merry, which had given birth to a ship spirit, died and were destroyed before his very eyes.

Not only that, in the original work, Luffy, this straight-laced guy, wins the favor of so many female characters, but he himself has no interest in women and is still single.

These are all things that Luffy doesn't want to happen to him right now.

However, the most crucial thing to change all this is to improve one's own strength.

In the world of One Piece, strength reigns supreme.

Only when you are strong enough can you take the initiative into your own hands.

Therefore, Luffy will never follow the original story's pace of temporarily unleashing his power and becoming stronger only when facing various crises, even after already knowing these things.

However, according to the timeline, he was able to obtain the Human-Human Fruit Mythical Zoan type Nika form after meeting Shanks at the age of seven.

For the first seven years, all he had to do was train and strengthen his physical skills.

Furthermore, the fighting style that best suits this Devil Fruit is physical combat.

Therefore, physical training is very necessary.

When Luffy thought of taijutsu, he couldn't help but think of Might Guy from Naruto.

His mastery of the Eight Gates technique can be considered the pinnacle of taijutsu; he almost ended the game with a single kick.

Just as he was thinking this, Luffy suddenly felt everything go black.

Immediately afterwards, an image slowly surfaced in my mind.

On a very open space.

A powerful energy surge suddenly shot into the sky, and a giant red dragon, seemingly stained with blood, appeared out of nowhere.

The explosion of air caused by the dragon was like a dragon's roar, deafening.

On the terrifying head of this gigantic dragon that seemed capable of tearing everything apart, a man with blood-red skin and a ferocious expression stared menacingly at the person opposite him with bloodshot eyes.

"Metkay!"

Luffy immediately recognized the man.

"I acknowledge your chakra."

"In terms of physical skills, among all the people I have fought, no one is stronger than you."

"I, Madara, wish to call you the strongest!"

The one who uttered those words was none other than the smug Uchiha Madara.

As soon as Madara Uchiha finished speaking, the red dragon roared and burst forth with overwhelming force.

Wherever it swept, the earth cracked and shattered, and space twisted and deformed.

"Ye Kai!"

Might Guy roared and launched a flying kick.

The red dragon then swooped down, its ferocious maw wide open, and pounced on Uchiha Madara.

...

The moment Might Guy clashed with Madara Uchiha, the scene before Luffy's eyes vanished, and his consciousness returned to reality.

"Your comprehension is extraordinary. Through visualization and personal experience, you have deduced and comprehended your exclusive skill, the Eight Gates Formation."

The words that suddenly appeared in Luffy's mind startled him.

He only recalled the moment Might Guy erupted, and then his consciousness was pulled away by an invisible force.

Then, when he regained consciousness, he had mastered the Eight Gates Formation.

"Exceptional comprehension, is this my cheat code?"

Luffy thought to himself.

Not only did he transmigrate and become the chosen one, but he also gained such an overpowered cheat ability.

If he doesn't take off soon, then he'll really be wasting his abilities.

"Eight Gates Formation: Your exclusive skill, which you comprehended through visualization using your extraordinary comprehension."

"Once the body reaches a certain level, one can automatically master the method of opening the Eight Gates."

This description came to mind again.

Luffy immediately understood.

The Eight Gates Formation is an extremely powerful physical technique, so it requires a high level of physical fitness.

Therefore, even if he has now mastered the Eight Gates technique, he cannot use it immediately.

Especially the eighth gate of the Eight Gates Formation, the Gate of Death.

This eighth gate is said to be able to be opened only once in a lifetime, after which the person will die because their life force has been completely burned out.

At that moment, Luffy suddenly thought of a possibility.

After the Nika Fruit (abbreviated as) awakens, it will possess a power that can be described as a bug: the Release Drum.

Hearing the "Drum of Liberation" will restore his strength, making him virtually immortal.

If you open the Eighth Gate while in an awakened state, will you be able to survive?

"Your comprehension is extraordinary. Through deduction and understanding, you have learned that in the awakened state of the Nika Fruit, opening the eighth gate can restore you to full health once again."

Seeing the prompt in his mind, Luffy was overjoyed.

It's actually possible to open the eighth gate and use "Night Kai" while in the awakened state.

After the Nika Fruit awakens, it can greatly enhance various physical attributes. If the Eighth Gate is opened again under these circumstances, and Night Guy is used...

That power, while not necessarily an instant kill, could easily crush a royal-level opponent.

"Ah... phew..."

As he was thinking, Luffy suddenly felt a little sleepy.

His physical and mental state were still too weak, and the exertion from deduction and comprehension was enough to exhaust him, so he quickly fell into a deep sleep.

...

Chapter Two: Awakening Conqueror's Haki, Born a King

When Luffy woke up again, he had no idea how much time had passed.

But to his surprise, he felt that his physical fitness had improved.

"Your comprehension is extraordinary. You have mastered a unique skill while resting and have enhanced it to the limit."

"Extreme Enhancement: When your physical functions reach their limit, after sufficient rest, your physical fitness will break through and be greatly improved."

"Your comprehension is extraordinary; you have mastered a unique skill while eating, enabling you to digest food at lightning speed."

"Rapid digestion: When you eat, the nutrients are quickly absorbed and digested, and used to restore physical strength and strengthen the body."

The information that suddenly appeared in his mind made Luffy understand immediately.

It turns out that after he comprehended the Eight Gates Formation last time, he pushed his body to its limit. Now, his physique has become stronger because of the new ability he has comprehended: limit enhancement.

As for his rapid digestion, it must be because after he exhausted his physical strength, he absorbed more nutrients from his mother through the umbilical cord, thus gaining this ability.

People in the world of One Piece generally have abnormal physical constitutions; their stomachs can be stretched into a ball and they can digest food very quickly. When they run out of energy, eating something can restore a lot of it.

Luffy's two abilities are simply enhanced versions of the abilities he already possessed.

Having figured all this out, Luffy, who had just mastered two new abilities, fell into a deep sleep once again.

At the same time, I gained a deeper understanding and familiarity with the new abilities.

...

A few months later.