Yuro transmigrates to the world of One Piece and becomes bound to a super check-in system.

You start by obtaining a physique enhancement pill and a Logia-type Devil Fruit.

Yuro broke into Beehive Island, gained Rocks' approval, and won the praise of Whitebeard and Shiki, eventually joining the Rocks Pirates.

From then on, the Rocks Pirates gained a new strongest fighter, possessing the strongest physical skills, the strongest Devil Fruit, the strongest swordsmanship, and the strongest Haki.

Rocks: Yuro, I call you the strongest!

Whitebeard: The strongest man in the world? That's that guy's exclusive title!

Roger: I am not as good as Yuro, he is the true king!

Garp: I'm tough enough, but he's even tougher than me!?

Good news: Awakening memories of past lives! Bad news: This is the Naruto world where the theory of bloodline is serious. Good news: Now is the interval between wars, there is still time for development. Bad news: I am still a little brat, alone and powerless. Good news: There is also an attribute panel that has been awakened, from now on, as long as I work hard, I can improve! ... Might Guy: Matsushita Taichi is the first person who recognized and worked hard with me. Sarutobi Hiruzen: Matsushita Taichi is the future pillar of Konoha. The Fourth Raikage: Matsushita Taichi, his use of Lightning Release is even better than mine. Nagato: Matsushita Taichi, with your help, peace in the ninja world is just around the corner. Uchiha Madara: Matsushita Taichi, I would like to call you the strongest bloodline ninja. Black Zetsu: Matsushita Taichi, you are the mastermind, right? Matsushita Taichi: I just want to keep getting stronger, why do you all misunderstand me!

Bai Yu came to the Naruto world as a second time traveler from the wizarding world.

The "Book of Ancient Sound Magicians" in his soul made him see the possibility of becoming a high-level wizard.

......

Although the fireball is powerful, its flying speed is not as fast as the improved level 0 spell [Acid Missile].

When the Impure World Reincarnation meets the [Soul Binding Technique] and the Flying Thunder God encounters the [Dimensional Lock], who is stronger?

......

"As we all know, wizards are all-encompassing, and sorcerers are a branch of wizards. So it makes sense that I know some ninjutsu, right?"

After saying this, silver-white scales grew all over Bai Yu's body, and he turned into a giant snake.

"The universe is vast, but I only take one bite!"

Didiski Xia Zheteng couldn't understand it at all. He was just watching the excitement, how did he end up transmigrating to the world of One Piece? And even awakening some kind of "spectator system"? But watching the excitement was really fun. So, wherever there was a big spectacle in the world, there was bound to be a Marine Vice Admiral who didn't care, didn't intervene, didn't catch thieves, and always had a watermelon and claws. "Enies Lobby is about to be breached, Vice Admiral, make your move!" "No rush, let's watch the excitement." "The prisoners at Impel Down are about to escape, Vice Admiral, make your move!" "What's the panic, let's watch the excitement." Sengoku: "Xia Zheteng, if we don't act soon, Ace will be rescued." "Oh, I really have to join in."

When the protagonist transmigrates to the world of One Piece and is adopted by Linlin's parents, these two steel balloons train diligently. Can they dethrone the god who has reigned for eight hundred years? The ship is ready, the name is established, and the ambition is proclaimed. They await the east wind to set sail and etch the mark of "Whole Cake Island" onto the vast ocean.

[One Piece + Transformation + No Romance + No System + Ship-Following Journey] A male college student falls asleep in class and wakes up to find himself transported to the world of One Piece, with a living Luffy standing in front of him. At the same time, his body undergoes some changes… PS: Not mindless, the protagonist has strong morals, focusing on heartwarming slice-of-life moments, following the main storyline but not strictly adhering to the anime; some major plot points will be altered. (The first few chapters follow the storyline, but some changes will occur after Zoro joins the crew.) (—Regarding the protagonist's name, it's not important and was chosen randomly. The original name will only appear in two chapters; in subsequent chapters, the protagonist's name will be Erza.) Current plot progress—Water 7 (Has passed the East Blue, Alabasta, and Skypiea.) PS: New book "One Piece: Traveling with Xiaodie," please support it!

Yamanaka Maple Leaf, a social slave in her previous life, died suddenly from overwork and traveled to Naruto. Good news: Both parents are alive and have names. Bad news: In the world of Naruto, there is a Death God system. Yamanaka Maple Leaf: Why are all the system tasks about healing? This damn spiritual power, not even a drop of chakra left me without any ninjutsu, I can only be a veterinarian with spiritual power! Parents have been "traveling frogs" for years, leaving notes and shells and running away. Hatake Kakashi seeks advice on Taijutsu? Kurenai Yuhi's eyes are full of admiration? Asuma Sarutobi sees him as a rival? Uchiha Obito shouts "Hokage"? Tsunade: "Kid, I heard that you have a high talent for medicine, how about being my apprentice?" Maple Leaf: "Then I will reluctantly agree." Tsunade: "Kid,

The power system in this book is set in Chapter 50. You can check it in advance if needed.

{Summoning build + Rocks Pirates starting lineup + No Mary Sue tactics}

Travel to the world of One Piece and awaken the mutant summoning system.

The X gene was directly modified to correspond to a Devil Fruit. Aliases: Pirate; started as a tiger, wolf, and dog, constantly entangled with Kaido; previously received many negative reviews for calling Whitebeard "Old Man," but has since corrected his ways and changed it to "Big Brother." Currently one of the Four Emperors.

Lin Yu transmigrated to the world of Demon Slayer. Awakening the Character Inheritance System, he immediately inherited the legacy of the blind swordsman, Fujitora Issho. Thus, a swordsman of unparalleled skill and mastery was born… “This swordsmanship!” “Is this really a sword that a human could wield?!” Kibutsuji Muzan collapsed to the ground, his face filled with unprecedented terror. Kibutsuji Muzan once again experienced the terror of being dominated by that figure four hundred years ago, even more terrifying than before. “This oppressive feeling…” “Perhaps, compared to us, you are the monster.” Upper Moon One, Kokushibo, stared intently at the man standing before him. Having experienced the terror of that man four hundred years ago, Kokushibo could better understand the terror of the man before him.

After his death, Xia Mu arrived in the afterlife.

When I opened my eyes, all I saw was a vast desert, with a pale moon hanging in the sky.

Then, another all-white monster attacked him.

Just when Xia Mu thought he was going to die, a figure dressed in black and wielding a long sword appeared and dealt with the monster.

Everything is moving in a positive direction.

Unexpectedly, an even bigger monster appeared, and before he could even ask the man who saved him his name, the man died.

In order to survive, Xia Mu had no choice but to pick up the long sword left behind by the man and fight.

He didn't know that the moment he grasped that knife, he had become Death himself!

...

From Hueco Mundo to Soul Society, from the Expeditionary Force to the Gotei 13.

This is Natsuki's life as a Grim Reaper!

(Note: Hueco Mundo is just the initial spawn point and won't last long; you'll soon enter Soul Society.)

(Note 2: The protagonist has only watched the anime, so he only knows the plot that appeared in the anime and the original TV series plots, and does not know the plot of the official novels, etc.)