The son of Shimotsuki Ushimaru who traveled to Wano Country, trained for 18 years, and awakened the most useless devil fruit "Silence Fruit".

He participated in the struggle of the Straw Hat Pirates in Alabasta and was invited by Luffy to become the vice-captain.

As Zoro's uncle, Shikotsuki Shikamaru began to teach Zoro swordsmanship.

Follow the adventure, finally defeat Kaido and retake Wano Country.

Xi Yan, a half-Uchiha and half-Senju, shone during the Second Shinobi World War. While on a mission to the Land of Water, he accidentally traveled to the pirate world and encountered a sea train bound for Judicial Island! Aboard this speeding train, Xi Yan encountered the boy who carried his destiny. Luffy: Are you a ninja? Xi Yan: Yes. Luffy: Be my partner! Xi Yan: Okay... Since we're here, Xi Yan, invited by Luffy, chose to join the Straw Hat Pirates and adventure with them. He used his power to help his friends rescue Robin and save the ship spirit, Merry! Merry: Xi Yan, what's that? Glancing at Moriah, Xi Yan declared that it was a waste of spirit, a waste who only knew how to rely on external things. ...During the Battle of Marineford, the massive Susanoo wreaked havoc on Marine Headquarters...

[Three-color domineering + mythical beast species + easy daily life + not a saint + no magic change]

Humans traveled to the world of pirates, and Toraci gained the abilities of the Beast Walker Udyr.

He can collect animals from animal-type ability users as beast spirits.

After obtaining the beast spirit Great Mouth True God, he gained the power to control ice...

After gaining the Great Enlightenment of the Beast Spirit, he became extremely powerful...

Gaining the beast spirit Yamata no Orochi gave him 8 times the health of an ordinary person...

…

After obtaining the Azure Dragon Beast Spirit, his Dragon God power reached its peak, rivaling Kaido's strength...

Kill Momoko, grab Hiyori, fight Nika, and reign over Wano Country!

Beat up the deserter king and crush the navy's dream with three punches.

Rage against the Marine Headquarters and annihilate Mary Geoise.

Make the Lunalia clan great again!

…

One Piece? Great Treasure? Or Change the World?

No, Hu Ci is not interested in any of these.

He just wanted to live peacefully and comfortably until the end of his life...

PS: Not invincible at the beginning, early training is slow

There are no self-created devil fruits. All mythical beasts are from the original works, games or official activities. There is no magic modification.

I'm a newbie in writing, so please forgive me for not writing very well in the first few chapters!

No group tour, no pirate, no navy, form your own adventure team!

Accidentally dropped the soul of the pirate world, and brought a thunder fruit with the popular system system

After eating the fruit...

Nami: Lei Luo, you bastard, you said you would only marry me and Nokiko?!

Nojigo: A Luo, how much more do you want...

Kuina: So you tricked me into coming aboard, really just to make me the world's greatest swordsman?

In the early stage, the protagonist develops his skills in hiding, and then travels around the world to recruit crew members.

Enter the new world later.

Empress: Lord Lei Luo, you finally came to see me!

Whitebeard: Luo Xiaogui, come and be my son.

Shanks: If you want to be my son-in-law, first ask my Griffin if he agrees...

Garp: Hahahaha... Luo boy, come to the navy, I will guarantee you the rank of admiral.

. . . . . .

When the flag of the adventurer Lei Luo fluttered by... the style of the painting suddenly changed.

"This troublemaker is here again!" "Everyone run! This bastard is here to cause trouble again!"

"Thor, surrender, you heinous criminal!"

Lei Luo's face turned black: "What Thunder God? Don't slander me, or I'll sue you for defamation."

[The rating will be a bit low when it is first released]

Journey to the world of pirates and connect with the god-level sign-in system! While Luffy basks in the glory of his Gum-Gum Fruit, Zoro has already signed in, gained the Shura Blade Intent, and Sanji has awakened the Divine Fire Foot! When the Battle of Marineford breaks out, the three admirals are horrified to discover that the Straw Hat Pirates' bounty warrants are gleaming with golden divine symbols! "It's not too late to surrender!" Nami chuckles, Thunder Cloud Staff in hand, as a vast ring of thunder appears behind her!

Traveling through the world of One Piece, Lynch obtains the strongest role-playing system. He draws Naruto at the beginning. The more he acts like the original character, the stronger the power he gains.

In order to gain the bond with your partner and improve your role-playing skills, you should join the Straw Hat Pirates.

Ding! The host activates the Sage Mode and gains the power of nature.

Ding! The host activates the Nine-Tails mode and gains the power of the tailed beast

Ding! The host activated the Six Paths mode. A mere grain of sand is no match for me.

From then on, there was a most feared and powerful ninja on the sea.

Warring States: The power of the Nine-Tailed Fox in Lynch's body is comparable to ancient weapons

Akainu: Immediately issue a bounty for that ninja, the reward is at least 1 billion

Aokiji: A formidable guy has arrived in the Straw Hat Pirates

Kizaru: He actually avoided my light speed kick

The Battle of Marineford? Have you ever seen the power of the tailed beasts?

Traveling through the pirate world, he was swallowed by the King of the Sea at the beginning, and then awakened the god-level [Cube Fruit]!

Everything in the world can be decomposed and reassembled! Others work hard to develop fruits, I directly read the data and synthesize it with one click!

While the navy was still showing off their pacifism, my 100-meter Diamond Gundam had already been assembled.

Everyone thought I was adventuring on the Grand Line...

They don’t know that every time I arrive at an island, I copy the data of the entire island!

The Battle of Marineford breaks out, and the eyes of the world are focused on the execution platform...

I printed a "Sky Island" directly above the Navy Headquarters! ?

Liu Yishou accidentally drifted into the world of pirates and obtained a strange pentagram array that could summon characters from another world.

His first partner turned out to be Wolf!

From now on, he will take Gray Wolf and other companions to travel freely in the world of pirates.

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!

As the saying goes, the rich rely on technology, and the poor rely on mutation. When Lind mastered the mutant fruit and awakened the farming soul of his previous life's flower-growing family, Lind not only controlled his own destiny, but also had the power to change the world.

Lind hid behind the scenes and first tricked Rocks into following the path of a mustache man in his previous life, and said, "I will stand at the highest place in the world and say to the whole world: 'Stand at attention.'" The authority of the Celestial Dragons was shaken for the first time.

He then tricked Shiki into delivering a pirate version of the Declaration of Independence, further undermining the Celestial Dragons' rule.

By the time Linde had been developing farming for decades and had accumulated immense experience, and stepped forward to say, "I have a dream," the entire world's situation was already in Linde's hands.