One Piece fanfiction + Battle Mage + Single Female Lead (Kuina) + Thrilling story set in the Great Pirate Era! Lin Feng, Battle Mage! Roaming the seas! With his Fire Dance Spear and Flowing Flame in hand, who can stand against him! With his Evil-Repelling Spear! Sweeping across the eight wastelands! I, Lin Feng, will surely uphold my justice, punching the Celestial Dragons and kicking the Five Elders! Sengoku: Lin Feng killed another Celestial Dragon? Garp: Well done! Uh, never mind. Shanks: The sea will change because of Lin Feng's appearance.

[Crossover anime + invincible later on + no system, current world order: Bleach - Fate - Oni Blade - Naruto - One Piece]

Tianji transmigrated to the world of Bleach. Knowing Bleach well, he originally thought he could make a name for himself, but fate played a joke on him. Tianji transmigrated to 1,500 years before the main storyline. At this time, there was no Shinigami Academy, and even the Gotei 13 had not yet been formed. The only one protecting the Soul King was the Zero Division, which only had two members.

That's not all. I thought I could finally enjoy life after defeating the Grim Reaper, but then I was transported to another world.

Digimon Adventure 2

The Birth of Doraemon: Nobita's New Little Life

Wind and Cloud

Holy Grail War

Roger Era

Jackie Chan Adventures

The Prince of Tennis

Super Demon God with Pokémon Halo

Naruto

grim Reaper

...

After being struck by lightning and transported to the world of One Piece, Lin Hai merged with the Rainbow Mist, with one part being absorbed into his body and the other drifting away with the wind.

Lin Hai, who had planned to live a peaceful life, never expected that his body would become uncontrollable and allow him to travel to other worlds. Being too weak and too afraid to go alone, he had no choice but to join the Straw Hat crew, whom he could trust, for a world adventure.

What he didn't know was that each time they traveled through time, another rainbow mist would open, bringing people or things from other worlds into the world of One Piece.

What kind of future will these changes create...? Let's wait and see!

Changes in the One Piece World

Lelouch

Lu Bu (Valkyrie)

Batman, Joker

The Nangong family

The three generals of Bikini Bottom

Navy Old Man Luffy

The Machine That Dropped Food (First Big Gathering)

Madara Uchiha (old age)

Royal power never fades.

Inazome, Ichigami

...

Starting from chapter 332, you can return to the worlds you visited together!

Sarred Doug, upon transmigrating, found himself at the scene of a gang war. Just as he was struggling in agony, the Interception System arrived, and Doug relied on it to grow stronger step by step!

Stealing the Golden Lion's position as Rocks' second partner rewards him with top-tier swordsmanship talent.

He intercepted Loki and became Loki's guide, rewarding him with the physique of an ancient giant.

God Valley saved Teach, thus changing the course of the world and rewarding him with the appearance of a king.

He intercepted the bear and Ginny, changing their tragic fates and obtaining the Twelve Supreme Grade Swords, Aragami!

They intercepted the Azure Dragon Fruit, stripped Kaido of his title as the strongest creature, and rewarded him with an extremely powerful physique comparable to that of an ancient giant!

They intercepted Barrett, a descendant of a demon, and Barrett ate the Azure Dragon Fruit, which rewarded him with Conqueror's Haki: Voice of All Things!

The Marineford War changed Ace's inevitable demise, rewarding him with a special application of Conqueror's Haki—a punishment! Specifically designed to counter Im's immortality!

A man of sound mind, Whitebeard Jr., under Whitebeard's leadership, participated in the Marineford War!

Teach became the executioner's blade in the slaughter of the Celestial Dragons!

Doug's influence has spread to the underworld, the CP organization, and the pirate faction.

He recruited the Whitebeard Pirates to build the world's strongest pirate crew, punching the Marines, kicking the Five Elders, and even holding off Uranus!

Little Im! Hold on tight! Hold on tight!

Ling Bai transmigrated into One Piece and arrived at Impel Down's Infinite Hell, where he signed in to obtain the Ice Imperial Arm! There were still two weeks until the Marineford War! "Demon descendant Bullet, want to make a big splash?" "Crocodile, do you crave freedom?" "Shiryu of the Rain, do you have a choice?" "We are invincible before us!" He signed in to Esdeath's Ice Imperial Arm, Natsu's Dragon Slayer Magic, Misaka Mikoto's Railgun… When the Marineford War arrived, the world trembled at the sight of Ling Bai and his companions descending from the sky! Sengoku: This era is named Ling Bai! He ushered in an era even more terrifying than the Great Pirate Era!

This is the world of Naruto. Clans, bloodline limits, systems… none of these matter to Xue Ge. He transmigrated to this world, but before he could even process what was happening, he lost an arm, a leg, and an eye. His lost limbs could only be replaced with prosthetics; taken in by Danzo, he experienced hellish training. “I won’t die… I can’t die! Roar, Dragon Vein!” “That’s enough. Here we go, Urashiki!” “Uchiha Madara, are your White Zetsu reserves enough?” “Sage Art!—” Xue Ge has nothing. Bloodline limits, clan power, cheat codes… his starting point is negative one. He will stir up the entire ninja world step by step.

[One Piece] [Following the Ship]

The power of two Tremor-Tremor Fruits appeared during the Marineford War!

Could the emergence of two world-destroying forces change the outcome of the Marineford War?

And it all started when our protagonist, Bai Yun, traveled through time and met Luffy as a child.

......

As the saying goes, when you're down on your luck, even drinking cold water can cause you to choke.

Bai Yun made a casual remark, and then suddenly died and was transported to the world of One Piece.

Yes, there is a system.

What do you mean by coming out to make a sarcastic remark, then handing over a fruit and running away???

Hakuno awakens the "Mutual Aid Space," connecting himself across countless worlds and sharing memories and abilities. Based on the "Grace" of the Mirage Realm, and incorporating the power of various worlds such as Demon Slayer Breathing and Red Slash, he transforms from a group of losers into a united front against crisis. Ultimately, on the path of "helping himself," he integrates the laws, achieves "self-unity," and creates a unique original world.

The World to Write

DanMachi, Demon Slayer, Akame ga Kill!, Heroic Knights, Inuyasha, Ga-Rei, High School DxD, Bleach, One-Punch Man, Campione, Guilty Crown, Strike the Blood, Type-Moon Garden

Multiple female characters, plot-driven, fast-paced, scheming, ruthless, and unscrupulous.

Kano was transported to the world of One Piece and unfortunately became a slave of the Celestial Dragons.

Fortunately, he ate a Devil Fruit and gained the ability to become stronger by making contracts with others.

And so, Kano made a contract with the Celestial Dragon Serendel, completing a life-changing turnaround.

Unfortunately, the housekeeper was very familiar with Celine Dyer, and soon his secret was revealed, so he had no choice but to make another contract with her.

With the help of Celestial Dragon Serendel, Kano grew rapidly and, under the pretext of this, summoned Ain and Tina, both Marines, to be his sparring partners.

Knowing the plot and their personalities well, Kano quickly formed a contract with the two. Later, CP0 Stussy and Gion Momousagi also fell into his hands.

So, now it's time to set our sights on the ocean. Nami, Robin, Boa Hancock, Uta—it's time to change the course of their lives.

Han Guang: "My teacher is Minato Namikaze!"

"My teammates are Kakashi, Obito, and Rin!"

"And as the captain of Class 9, it's only reasonable for me to ask for favors, right?"

Nine-Tails: "Is this your reason for pinching me up?"

Danzo: "Why? You only threw one punch, but I lost nine lives?"

Hiruzen Sarutobi: "I've already abdicated, yet you're sending me to the battlefield?"

Madara Uchiha: "Impossible! I've already surpassed Hashirama, and you defeated me with a single punch..."

With a calm expression, Han Guang unleashed a punch at the moon from afar.

A terrifying force tore through space, stirring up violent spatial turbulence.

This strike was like a dark ray of light, shooting straight at the moon.

A moment later!

The moon exploded!