After his defeat on Onigashima, Kaido, submerged in the seabed's lava, opened his eyes and was reborn in 1484, serving as a trainee on Rocks' ship. The God Valley Incident was about to unfold! "One bad thing after another. If defeat by Joyboy is fate, then I will tear it apart!" Kaido picked up the Eight Saber Rings, and with a wielding of his Domineering Haki, he blasted the mountain to smithereens. A Devil Fruit awakened? Enveloped in Domineering Haki, he could see and kill! Only Haki could forever stand at the top of the world! In this age of brilliant heroes and powerful warriors, Kaido must rely on his own strength to challenge Roger and Whitebeard and make up for the regrets of his past life!

Traveling through time and becoming Kaido, the Beast King of the Pirates?! Discovering that the timeline is thirty-one years before the plot begins?! His own strength and potential have been greatly enhanced?! So what are you waiting for? Just do it! Bring down the high-and-mighty Celestial Dragons. Destroy the Marines, destroy the Celestial Dragons, and destroy Im. The throne of heaven has waited for its master for far too long. It's time to take it!

The mystery of the sea is that you won't be surprised by anything that happens. The property of Buggy the Clown, the treasure of Crooked... Luffy was bored and found a pendant in there, and then he heard a voice in his ear. "What is your dream?" Luffy answered without hesitation: "I want to be the man who becomes the Pirate King!" The starting point of the nightmare. The Pirate King training plan begins! Learn and train with Zoro, learn sniping with Usopp, and learn knowledge with Nami? ... Fruit development proficiency +1 Observation Haki proficiency +1 Armament Haki proficiency +1 Conqueror Haki proficiency +1... Becoming the Pirate King starts with only one hour of sleep a day. During the Battle of Marineford, Akainu looked at the boy who mastered the three colors of Haki falling from the sky and roared angrily: "This boy must not be sent back to the New World!"

Traveled through time.

Takro looked at his reflection in the water: a spiky head, a ten-year-old body, and a dangling tail...

Got it! A true Saiyan start!

With the system in hand, the world is mine!

Becoming stronger? Super Saiyan? Bulma on the left and Chi-Chi on the right? It's just around the corner!

However...

"Haki is also qi! I've practiced correctly!"

"Although I can transform when I see a full moon, I'm not a fur tribe!"

"What is ONE PIECE? What is One Piece? Where are my Dragon Balls?!"

......

Day 1 of the journey: The Dragon Ball world is too dangerous! Stay safe and develop!

Traveling through time: Huh? It seems just like that?

After traveling through time for N years: What kind of bugs are the Celestial Dragons? This is my Earth!

[Raising Luffy and Ace to be a Marine from a young age] [Raising Zoro and Kuina to be a Swordsman] [Giant Physique + Teleportation + Fist Bone] [Multiple Fruit Abilities] [Stupid Development Diary + Passionate and Warm Daily Life]

After Roy was sent flying by the "Special Truck for Reincarnation in Another World", he was thrown into the world of "One Piece" by the Sand Sculpture Goddess.

But when Roy was really dragged into the Marine Headquarters by Garp by the collar, he was stunned——

"Where are the promised system benefits? Why is this old man forcing me to punch ten thousand times every day?!"

As a result, the navy's style gradually collapsed——

▷ Luffy: "Blue Dragon Fruit (Pink Version) + Fist Bone Gently Instructed = Dragon Form Fist Bone Machine Gun!"

▷ Ace: "The Flame-Flame Fruit is weak? Have you ever heard of the Ultra-High Temperature Compression Explosion?"

▷ Zoro, Kuina, Law, Nami, and Nojiko were kidnapped and enlisted in the navy...

Remos traveled to the world of pirates and activated the destiny simulation system.

As long as you follow the concept of destiny, the degree of fit will continue to improve, and you will walk on it and become a destiny traveler.

"My first destiny is hunting? Very good. From today on, I'm a sea ranger... Hey, that title is quite fitting."

Remos blew on the muzzle of his gun, threw the bounty order on the pirate's body, and said with a smile.

Kane never expected that he had just caught a Rayquaza with a Master Ball in the Ultra Emerald, and in the blink of an eye, he was transported to the world of pirates.

Good news, I have a new devil fruit with a Rayquaza pattern.

Bad news, Kaido, who was doing bungee jumping, landed right next to him.

As a result, the Beasts Pirates gained a natural disaster, and Wano Country gained a guardian dragon.

Many years later.

Robin: "Lord Kane, please make it rain in the order of Hakumai, Suzuho, Hananoto, Nozomi, and Kuri. By the way, please keep the rabbit bowl dry."

Kane: "Damn it, I'm Rayquaza, not Wish Dragon!"

Yamato: "Then Kane, come and fight me for fun!"

Kane: "Ah, the people of Wano Country need me. I'll definitely come back next time."

Kane quickly turned...

[Original Nature-Type Popo Fruit] [Veteran of the Roger Pirates] [Gold, Silver, Bronze, and Iron] [Supreme Orange Juice] [The First User of the Face Fruit]…

As a witness and firsthand experience of both the old and new eras, Kyle’s achievements are countless, but when it comes to turning points in his life, he can’t help but recall an afternoon when he was six years old.

“A… Ace?!”

No, no!

Sorry, sir, I didn’t recognize you just now!

This is clearly Ace’s father—young Gol D. Roger!

“Little Kyle, I’ve taken a fancy to you! Are you interested in going out to sea with us? Let’s see what the ocean really looks like!”

The legendary succubus unleashed her power, and the only thing she could hold back was this↑

…

Decades later, during the Battle of Marineford, a mature, middle-aged handsome uncle descended from the sky.

“Ah, Mina-san, excuse me, it’s time for my naughty nephew to go home for dinner!”

[At the age of eighteen, just debuted as a pirate, you met the current overlord of the sea in the pirate world, Rocks D. Zibek. Now what you have to do is to find a way to survive in his hands. 】

After traveling back to the pirate world for seventy years, the great pirate Monger, who was ready to retire, looked at his system that was seventy years late.

And the intern in front of him who just turned twenty, hasn't even learned how to be domineering yet, and is working diligently on his own ship.

Reach out your hand.

Bang!

"Captain, what are you doing!?"

"Nothing, I just want to beat you up."

[Ding~, congratulations on defeating the overlord of the sea, Rocks D. Gibeck! 】

...

This book is also known as - "As a Pirate, You Get Younger and Younger"

"How Can You Lose When All the Crew Are Royal-Class? 》

Become...