The pirates sat and forgot, and they really believed the nine truths and one lie.

Nika's entire aura changed. What emanated from him was not the domineering aura, but another kind of aura that was purer and more condensed.

Luffy's entire image from the inside out is wrapped in a fierce white gas. The power of Nika is just his background, and he does not need to rely too much on the power of the devil.

When Garp saw his grandson's brand new look, he felt even more oppressed than when he just transformed into Nika. The grandfather was speechless about his grandson. Why was Luffy's health bar so thick?

He had already defeated his grandson several times, and every time at the critical moment, Luffy would do a sit-up, stand up again and continue fighting, gaining more strength than the last time.

"Luffy, is that the energy emanating from around you, or the martial arts energy within your body?"

Faced with his grandfather's question, Luffy was still a child and answered directly without hiding anything: "The power of the compressed martial arts energy, Mr. Buten calls this move Kaio-ken, let you try the double power of Kaio-ken"!

Luffy was ready to fight, waving his fists, determined to take revenge and knock his own grandfather away.

The sudden appearance of the name of the move made the navy very confused. What kind of boxing style is Kaio-ken? Is it a powerful punch?

Borsalino and Garp looked at each other, each with more calculations than the other. If they could ask clearly before fighting, it would not do any harm to the navy. Bullying Luffy is a good boy.

"Wait a minute, Luffy..."

Garp raised his arms to stop his grandson, as he had something else to say. Luffy was very polite and immediately lowered his arms, ready to listen to his grandfather's teachings.

Borsalino took the opportunity to say, "Luffy, your grandfather and I are curious about what Kaio-ken is. Is it a very advanced boxing technique?"

"Luffy, I'm very curious. You don't mind if I learn a few moves, right?" Garp and Borsalino cooperated to delay time.

Under the deception of the two old men, Luffy, with his simple and easy-to-manipulate personality, did not think too much about it. Teacher Buten did not tell him not to tell the secret of Kaio-ken to outsiders.

Ace looked at the Admiral and his grandfather working together to deceive Luffy, and was about to speak to stop them, but the executioner next to him sensibly covered his mouth, preventing him from making any sound at the critical moment.

Sabo was fighting with Rengoku Kyojuro at a distance. He wanted to stop Luffy from revealing his trump card, but it was too late for him to speak. The adults were so mean!

"Kaioh-ken is actually not a fixed fist style. If I can always maintain the state of double Kaio-ken, all the physical values ​​​​such as strength, speed, attack power, defense, etc. will double." Luffy proudly said his secret, as if he was a child who got a new toy and showed it off in front of other children.

"Impossible, how can there be such a cheating trick in the world?"

Karp's attitude was one of disbelief. He thought his grandson had become smarter and was playing a joke on his grandfather.

The improvement of Kaio-ken is too comprehensive, completely unreasonable and unlike the boxing style of this world, it is a dimensionality reduction attack on the existing system.

The Sword Confidential Team nodded and agreed with Garp's idea. They didn't believe in King-ken Kai, as Luffy said it was powerful.

"Can your King-ken be more than twice as powerful?" Borsalino had a different attitude. He guessed a broader possibility. The limit of how King-ken can liberate an individual might have no upper limit.

"The creepy uncle is right. Mr. Buten said that the layers of Kaio-ken can continue to increase, but the burden will be greater the higher you go." Feeling Ace's hesitancy and his mouth covered, Luffy's innocent thoughts gradually dissipated in his mind.

If you want to rescue Ace, you still have to rely on your fists. "If you don't believe in the multiple improvement of Kaio-ken, then you can try to see if I have become stronger!"

The next moment, white flames wrapped around the rubber body like a corona, and the air made a sizzling sound under the high temperature. Luffy would not show mercy to his grandfather this time.

Garp's pupils suddenly contracted. A moment ago, his grandson was standing hundreds of meters away, his fists deeply embedded in the ground, and his muscles were shaking violently due to excessive load.

The next moment, the figure emitting white light completely disappeared from his field of vision.

It is not an afterimage caused by high-speed movement, but a true "disappearance" without any warning.

The wailing sound of space being squeezed at extreme speed, which only the strongest can perceive, pierced Garp's eardrums.

It was almost the fighting instinct that overwhelmed the thinking process. The naval hero's majestic body had already reacted on its own. The muscles of his arms covered with top-level armed color domineering bulged and crossed in front of his chest.

The defensive posture, which has been honed over decades and is as strong as a solid wall, has blocked attacks that could split mountains in countless fierce battles.

But, it's too slow.

No, it’s not that he is slow, it’s that white light, which goes beyond the category of “fast” and is almost a leap in time and space.

Garp's vision was completely occupied by the dazzling white light. He couldn't even see the trajectory of the fist. He only felt an indescribable impact force, as if it condensed the weight of the entire world, hitting his right cheek hard.

Buzz! His mind went blank, and in his ears was the roar of an explosion and the teeth-grinding creaking sound of Garp's neck bones bearing the immense force.

It didn't feel like being hit by a fist, but more like being hit head-on by a high-speed flying steel fortress.

The naval hero, Monkey D. Garp, whose majestic figure was enough to shock the entire Grand Line, flew backwards uncontrollably like a kite with a broken string, or like a doll hit head-on by a battering ram.

Whoosh—bang! bang! bang! bang!

His body became the most violent tool of destruction, clinging to the ground of the square of Marinford, dragging, bouncing, and crashing madly.

The solid stone slabs shattered, rolled up, and exploded like fragile biscuits, plowing out a huge and shocking gully.

Along the way, there were navy soldiers trying to form a defensive formation, captain Whitebeard fighting, and even the huge fortifications and collapsed house wreckage.

Anyone who was touched by this backward-flying figure would be swept away and torn apart by the terrifying kinetic energy without exception, and thrown out together.

Screams, cries of surprise, and the dull thud of heavy objects falling to the ground mixed with the harsh noise of bodies being dragged.

Figures were flying, rubble was everywhere, as if an invisible giant beast was using Garp's body as a brush, wantonly painting a trail of chaos and destruction on the battlefield of Marinford.

This violent trajectory came to an abrupt halt only when he finally crashed into the distant wall of the headquarters fortress and embedded himself in a deep spider-web-like pit, stirring up smoke and dust that rose like a mushroom cloud.

The whole audience was dead silent for a moment!

Everyone's eyes involuntarily followed the destructive trail that crossed the entire battlefield.

Finally, it landed on the diffused smoke and the starting point of the trajectory. The white light gradually converged, revealing the figure of the straw hat boy who was breathing slightly.