(The main character is a pirate, a great swordsman, a single female lead, not a harem, and the events before this are unrelated to the main character's group.)

He survived countless extreme battles, slaying all enemies who stood in his way.

His sword-drawing technique was as fast as lightning, shaking the world.

He is the brother Nico Robin tearfully recognized, the nightmare of the Celestial Dragons, the great enemy of the Navy, and a walking, single Yonko.

He is a man who walked out of hell alone from the very beginning of the Great Pirate Era.

Long, flowing hair, black robes, and a free-spirited demeanor.

Everything they do is aimed at overthrowing the tyranny and distorted rule of the world government.

Arthas: "Don't listen to their nonsense. I am a righteous person. Although I have slaughtered many lives, it was all for the benefit of the sea and for the benefit of you."

...

He transmigrated to Konoha, possessing the Flame-Flame Fruit, and shone brightly in this world. Fire Fist, Mirage Flame, Mirror Flame... He is the man known as the Flame Emperor! He ended the chaos of the world, utterly defeated Madara, and ascended to the pinnacle of the ninja world!

Chiba transmigrates into Kirigakure, becoming a member of the Snow Clan, facing extermination. He starts with the Ice-Ice Fruit and masters its power! Level 100: Ice Age, freezing the entire Kirigakure! Level 200: Frozen Space, even space-time ninjutsu cannot escape! Level 500: Frozen Time, stopping the flow of time, the entire ninja world at his mercy! Haku: Compared to my brother's Ice Release, mine is utterly insignificant. Mei Terumi: You bastard Chiba, the Mizukage is yours now, let me go! Kaguya Otsutsuki: Why can't I move? You... what do you want to do?!

"Unify the Ninja World," "Chat Group," "Multiverse," "Decisive and Ruthless," "Kushina," "Invincible"

Yu Cheng transmigrated into the body of the young patriarch of the Whirlpool Clan. Faced with the impending extermination of his clan, he dared not stop for a moment!

Fortunately, his three adopted sons were transported to the worlds of One Piece, Demon Slayer, and Martial Soul, respectively.

And so—

"Old Cheng! Is the Dark-Dark Fruit any good? Hehe... I want to use the Impure World Reincarnation~"

"Come here! Old Cheng, I'm now an Imperial Beast. Which soul beast do you want as your summoning beast? I'll teleport you there!"

"Uchiha Madara wants to fight you? And the Otsutsuki want to join the fray?! Fine, let's fight!! Behold my Sun Breathing!!!"

——————

Several years later.

Uzumaki Yu Cheng transformed into the Demon King, wielding the Supreme Great Sword, stepping on the Black Dragon Emperor, his Rinnegan lowered, looking down at the dying Allied Shinobi Forces.

"From this day forward, the ninja world will be unified. And I... will stand high in the heavens, becoming an immortal god!"

This is the story of a transmigrator who, after obtaining a One Piece character lottery system, wanders the Fairy Tail world. From then on, the Fiore Kingdom gained a guild called One Piece. Jellal: Eat my True Celestial Magic Starfall! Fujitora smiled silently, sensing the meteors falling towards him from the sky with his Observation Haki. Acnologia: I, Acnologia, the ceiling of the Fairy Tail world, am completely immune to magic! You all must surrender immediately! Sakazuki Akainu: Eat my Dog-Slaying Magic Secret Technique: Ghost Hound!!

Transmigrating to One Piece and activating the Red Alert Omnipotent System! The cunning and ruthless Emperor Liu Deng is decisive and ruthless, sweeping across the chaotic world with the power of Red Alert!

Surrounded by goddesses from the original work and original beauties, each excels in navigation, combat, scientific research, and medicine, with maxed-out bonds that boost combat power! Take on the Navy, slay the Four Emperors, and destroy the World Government; with technological superiority, crush all enemies!

With beautiful women by his left and a powerful army paving the way with his right, he rose from an isolated island to become the world's emperor. This is the legendary carnival of the Red Alert Empire!

#Brainstorming# #WhatIf# #Suppose# #LiveStreamingAcrossWorlds#

Transmigrator Su Mu awakens the "What If in All Realms" system, which allows him to create and play various "what if" parallel universes of anime and novels, with audiences spanning countless worlds.

First broadcast: "What if Minato and Namikaze hadn't died?"

Seeing Naruto enjoying his father's and mother's love since childhood, while Kurama was treated like a "power bank," viewers from all realms smiled like doting aunts.

Second broadcast: "What if Itachi had killed all the Uchiha, but Sasuke chose to forgive him?"

Third playback: ...

Just as viewers across the universe were immersed in various heartwarming or regrettable endings, Su Mu unleashed his trump card.

What if... Naruto was killed by the villagers and was reborn, only to become completely corrupted?

The entire ninja world went mad when they saw the corrupted Naruto who controlled the Nine-Tails, treated human life like dirt, and regarded Konoha as his enemy!

The Third Hokage: "Quick! Go protect Naruto! At all costs!"

The world was shaken; it turns out that a single choice can truly overturn the entire world!

[Three types of Haki, physical combat, swordsmanship] [Strongest pirate crew, Devil Fruit crew] [Momonosuke's ultimate move] [Doesn't fawn over Luffy] [Single or multiple female leads]

Logan, who has been transported to the world of One Piece and become a descendant of the Oni clan, is a little panicked because he is being held captive. Just then, he receives a fruit from the transmigration system before leaving.

Just as he was happily trying to find a way to escape, he was sold to the Celestial Dragons and became a slave. Looking at the explosive collar around his neck, he felt a sense of despair.

Just then, a voice rang out:

"How are you?"

And so the story begins.

[To make up for some regrets in the original work! An adventure! Traveling through the world of One Piece!]

Transmigrating to the world of One Piece, Liu Jiu became the most inconspicuous rookie on Roger's ship, responsible for wiping the floor. The Marineford War? The battle for the Four Emperors? What do I care! I'll just stay in a corner and watch the show quietly.

Until one day, my daily routine was disrupted by three troublemakers—a future revolutionary army strategist, the world's greatest female swordsman, and a devil's child who can decipher the Poneglyphs.

Looking at my hungry babies, I sighed and was forced to get back to work.

Navy hero Garp wants people? Without a single Shichibukai spot, forget about it! The Four Emperors? My full Haki will intimidate everyone! A Celestial Dragon dares to be arrogant? I'll just rip up Mary Geoise!

While Luffy was still playing in the mud in the East Blue, my crew had already swept across the Grand Line.

When I woke up, I had been transported to the world of One Piece and become Garp's grandfather, Monkey D. Lingfeng!

Looking at the infant Garp who was crying for food, the Dragon who was destined to be a “filial son to his father” in the future, and the silly boy Luffy who kept shouting that he wanted to be the Pirate King... Ling Feng felt that this family would fall apart without him.

He had planned to enjoy a peaceful retirement, fishing and drinking tea. However, the Navy Headquarters kept asking him to come out of retirement, and the Five Elders were extremely secretive about his past.

Until the Marineford War, when Ace was on the verge of death, Akainu arrogantly boasted.

Ling Feng sighed and slowly stood up: "The young people these days are really getting worse with each generation. It seems it's time for you to remember the fear of being truly dominated by the 'Will of D'."