[Adventures in the Roger Era] + [Gunslinger] + [Pure Devil Fruit Development] + [No System] + [Unchanged Power Levels]

Darrow travels to the world of One Piece and becomes the younger brother of Roger's wife Rouge. Fortunately, Roger has not yet conquered the Grand Line, so Darrow still has time to change his sister's tragic future.

With the power of the Compression Fruit and his innate Observation Haki, Dead Eye, Darrow grew step by step and made a name for himself on the high seas, writing his own legend in an era where heroes like Roger, Rocks, and Whitebeard rose to prominence.

The story begins with the crew's adventures (partially original storyline + extensive references to the old era in the manga), and after Roger's death, they become one of the Four Emperors and vie for supremacy.

[The strongest gunslinger] + [The most imaginative fruit development]

[No need to follow ships + no need for navy (transitional) + invincible in the mid-to-late game]

In the year 1495 of the Sea Calendar, Yi Chen transmigrated to the world of One Piece with a collector system. Everything can be collected, and items recognized by the system can earn rewards.

[Congratulations, host, for acquiring the common item: "Unknown Sword Technique". Reward: One year of sword technique training experience.]

[Congratulations, host, on acquiring the rare item: "Naval Six Styles"! Reward: Five years of training experience in the Six Styles]

[Congratulations, host, on acquiring the Epic Item: Fifty Craftsmanship Skills of the Fine-Grade Sword - Mountain Falcon. Reward: Ten Years of Swordsmanship Training Experience]

[Congratulations, host, on acquiring the legendary item: Hawkeye's Dagger. Reward: Swordsmanship that can cut through steel.]

[Congratulations, host, on acquiring the divine item: The Medal of the Demon Heir. Reward: Awakening of Conqueror's Haki]

[Congratulations, host, for collecting a special item: Major Tina's personal items (duplicate). You will be rewarded with 500 collection points.]

......

In 1520 of the Sea Calendar, the Battle of Marineford broke out, and the Yi Chen Grand Fleet descended from the sky, surrounding the entire navy.

Crocodile: Boss, did you have to make such a cool entrance?!

Empress: I will protect Brother Chen's will!

Hawkeye: You want me to go easy on you? Five duels and three bottles of homemade wine!

Ming: Young Master Chen, let's cause a huge ruckus together!

Big Bear: How can we make the acting more realistic? Ah Chen is making things difficult for an honest person!

Moonlight Moria: ......

Admirals: Turn your guns around! The time has come to swear allegiance!

I transmigrated into the Naruto world and became a member of the Hyuga clan. At eight, I awakened the Tenseigan and rose to the rank of elite Jonin. At nine, I single-handedly completed twenty extremely difficult S-rank missions, earning a place as a candidate for Fifth Hokage, my genius resounding throughout the ninja world. Then... I gave up. I had no interest in conquering the world, nor in causing trouble everywhere; I just wanted a peaceful, laid-back life. A ninja doesn't need to risk their life everywhere; completing missions and picking up girls is the true path. But I never expected this! I've already awakened the Tenseigan, and you're telling me there's a system? A mentor-disciple system, making me take over Team 7? Rewards for educating Team 7? I just wanted to give up, but the system wants to make me invincible! "Hinata, I'll teach you the Gentle Fist of the Night!" "Cang...Cang Yue-nii...?"

Ye Chen unexpectedly transmigrated to the world of Food Wars!

Here, he can obtain rare fantasy ingredients through the system: Gem Meat, Rainbow Fruit, Scare Apple, Galakrond, BB Popcorn, Century Soup… These irresistible items have begun to draw food lovers and chefs from all over the world!

Invincible + Not a Virgin + Ninja Beauty + Anime

He traveled through Naruto, replaced Senju Nawaki as Tsunade's (pseudo) younger brother, became the number one young master in Konoha in one step, and obtained the Dimensional Treasure Box System.

"Ding! Congratulations to the host for obtaining the Rinnegan (enhanced version)."

"Ding! Congratulations to the host for obtaining the Zanpakuto - Kyoka Suigetsu."

"Ding! Congratulations to the host for obtaining the Space Gem."

………

Possessing so many incredible skills at the beginning, Ling Yu said that it would be his turn to rule the entire ninja world.

Kick all the top movie stars, embrace all the beauties, and make up for the regrets in your heart.

Cheng Feng transmigrated into the world of Fairy Tail. In this world where everyone's combat power is off the charts, Cheng Feng is a little panicked. Fortunately, he possesses the ability to receive magic and also carries a gacha system. With enough money, he can draw cards, and the cards he draws can be used using the receiving magic. This is getting interesting. Paying to get stronger—as long as the money's right, even the Black Dragon will be utterly defeated!

Lin Mu traveled through the world of Naruto and began to devour Hashirama's cells. From then on, he rose against the sky, possessed the beauties of the ninja world, and fought against all the heroes of the ninja world!

Ding, the system is being activated...

The strongest template is being unlocked. Congratulations to the host for obtaining the template of Hashirama Senju!

[Unbeatable background, no system, multiple female characters, doesn't eat beef]

This book is also known as [One Piece: The Strongest Background King] and [Because I don't eat beef, Im said I'm too extreme].

Ace's father was the Pirate King Roger, Luffy's father was the Revolutionary Army leader Dragon, and Teach's father was the former ruler of the seas, Rocks.

Alright, alright, so the world of One Piece has entered the era of relying on one's father's connections, huh!

My name is Narona Ian Saint. My mother lives among the flowers year-round. The Five Elders kneel and call me Young Master. The Knights of God are my personal guards. What do you have to fight me with?

Comparing family backgrounds? My family has a history of 800 years, but it can't compare to your family's three generations of hard work.

"Kicking the Celestial Dragons like a football? Who is this guy to be so arrogant?!"

"What? The Five Elders actually called him Young Master? Then it's alright!"

"They kidnapped Princess Vivi to the Holy Land, and then blew up a restaurant just because she wouldn't eat beef. Is there no law left?"

Ian: "Which law says you can't do whatever you want? I'll make my mom change it!"

Anke, who was sealed in a body, finally regained consciousness after being killed and regained his freedom.

At the same time, the mysterious voice that had been speaking in Anke's mind - Thram - was also liberated.

One man and one soul joined the Fairy Tail guild and became a famous S-class wizard in the guild.

As the former god Ankhseram, with the help of Seram, the magic that once belonged to God returned to Ankh's hands one by one. From then on, the Fairy Tail Grim Reaper who roamed the world was born!

The protagonist's memory of the original novel is incomplete, probably up to the end of the Tenrou Island section.

[Erusa has no blood relationship with the male protagonist, she is just setting the stage for the plot later, don’t scold me without reading the introduction]

[Naruto Fanfiction + System Flow + Invincible Cool Article + Not a Saintly Virgin + Decisive Killing]

Traveling through the world of Naruto, starting out as a war orphan, with no bloodline, no background, and no resources?

It doesn’t matter, my name is Kamijue Yusuke, a man who can upgrade his ninjutsu to infinite levels!

While others are still worrying about learning C-level ninjutsu, my [Three Body Technique] has been practiced to MAX, I can form an army with just one thought and be immune to Tsukuyomi!

While Uchiha was still feeling proud of his Mangekyo, my [Fireball Technique] had already evolved into Sun True Fire, and even Amaterasu would have to take a detour when she saw it!

[Taijutsu] MAX: Punches the perfect Susanoo, kicks the Ten-Tails Jinchuriki, and the Eight Gates? What kind of garbage is that!

…

Uchiha Madara: "In terms of Taijutsu, I would like to call you the strongest!"

Orochimaru: "Give up the Sharingan, Yusuke-kun, your body is the most perfect art!"

Kaguya: "You...you're not a ninja, what kind of monster are you?!"

Kanzuki Yusuke, carrying a "planetary-level Rasengan", stood on the top of the gods and smiled calmly:

"I'm just a mortal who has put in the most effort and sweat."

"So-called bloodline, so-called talent, in front of a hardworking person like me, are nothing but chickens and dogs!"