One Piece: What If the Navy Executed Koby at Marineford and Didn't Save Ace? 海贼王的，要是海军阵营顶上战争处死克比不救艾斯

1. 1 海EN One Piece: The Navy's Greatest Scum 海贼：海军史上最大败类 Mario Eats Chicken Breast马里奥吃鸡胸肉Anime Fanfiction2.2M WordsOngoing At a Marines internal hearing, senior officers sternly questioned Darren, the North Blue Admiral known as the Marines' “scum.” “You've had improper relationships with princesses from numerous North Blue kingdoms and the wives of their nobles?” “I was just showing the people some care.” Marines high command: ... “Then how do you explain the outrageously high pay for the soldiers under your command in the North Blue?” “With the pittance Headquarters pays them, how else do you expect them to risk t 26kReads9.5Score1.9kShelves

   Reader note

   The naval-themed novels I like on my bookshelf are: the first two are by the same author, and the third is about a time-traveling protagonist who becomes Sakazuki.

2. 2 这 This Navy's the Real Deal: They Actually Dare to Kill Whitebeard! 这海军能处，白胡子他真敢杀！ Mario Eats Chicken Breast马里奥吃鸡胸肉Anime Fanfiction2.0M WordsCompleted ([Slow burn] + [Justice] + [High energy]. The early pacing is a little slow, so feel free to skip ahead if you can't get into it. It takes off from Chapter 56!!) The Great Pirate Era is rife with conflict, and pirates run rampant. I am Ron. In the name of a hero, I protect the weak and stand firm in defense of the justice that is mine. Akainu: No matter what it takes, I want him as my adjutant! Sengoku: Damn it! How did I, the Fleet Admiral of the Marines, end up as a figurehead? Zephyr: He is t —Reads—Score—Shelves
3. 3 海EN One Piece: The Rampaging Volcano 海贼之暴走的火山 Braised Pisces红烧双鱼Anime Fanfiction1.0M WordsCompleted [Protagonist: Sakazuki (Akainu)]+ [Marine-Centric] [Subordinates: Enel, Bullet, Kizaru, Kuzan, and other admirals...] In the end, the entire world will submit to the firepower of the Marines. No exceptions. (Everyone gets wiped out)... P.S. The Marines will purge the world in the finale. Saints and people who just want to watch the world burn, stay away. The later parts get pretty brutal. It's hard to watch the pirates you like get chopped into mincemeat, you know? 8.1kReads9.5Score492Shelves
4. 4 海 One Piece: My Absolute Justice 海贼：我的绝对正义 A Dream Like Floating Clouds浮云般的梦Anime Fanfiction422k WordsCompleted "This chaotic era needs a clear-headed madman to bring it to an end!" "From the very beginning, he was someone who had lost everything..." "In my own name, I will eradicate every pirate!" Roger's words ushered in the Great Pirate Era, and pirates ran rampant. After his home was destroyed, the reborn Zhang Ye resolves to uphold Absolute Justice. "I'll end the evils of this age, pirates and Celestial Dragons alike. I'll do whatever it takes. That's my justice." Along the way, he goes from bein 998Reads7.6Score103Shelves

   Reader note

   He directly killed Ace during the Marineford War and, without giving Shanks any face, strangled Kobe. [Heart emoji]

5. 5 从 Starting with the Marineford War, I’ll Slay Every Pirate! 从顶上战争开始，杀遍所有海贼！ How to Get a Grade of 90九分出成绩的方法Anime Fanfiction421k WordsCompleted System + invincibility + justice that leaves no one alive + livestreaming Koby's execution + chopping up Momonosuke + cutting Luffy into five pieces + nuking Mary Geoise + killing the entire Straw Hat crew Absolute justice means every pirate must die! Reborn during the Summit War, surrounded by coun 842Reads7.7Score103Shelves

   Reader note

   These are the ones I'll talk about.

6. 6 海 One Piece: The Dream-Slaying Mentor, King of the Marines 海贼：灭梦导师海军王 The Evening Breeze Speaks Not晚风不语Anime Fanfiction503k WordsCompleted After Roger was executed, the transmigrator Dylan, who had been lying low in the East Blue for ten years, spent every day exterminating pirates, just as he had for the past decade. He made sure the East Blue kept its title as the “Weakest Sea.” When the gears of fate began to turn, Dylan entered the New World. Blackbeard: “A man's dreams will never...” Dylan: “What did you say? What's your dream?” Blackbeard: “I don't have a dream. I just want to retire on Pops's ship.” Please head to the main s 22.1kReads9.4Score1.4kShelves

   Reader note

   The Navy faction! The first book features a protagonist who transmigrates into Akainu, ruthless and decisive in killing. He uses absolute power to overpower Luffy and various pirates, his methods even more decisive than Akainu's. What kind of king will you become? The second book features a protagonist who starts invincible, with CP0 members working for him for a long time. His subordinates hunt down pirates, and he single-handedly fights the Red Crescent Pirates, severely injuring Shanks and killing Yasopp!

7. 7 海 One Piece: The Strongest Marine King Is Akainu! 海贼王：最强的海军王是赤犬！ The Strongest Akainu最强赤犬Anime Fanfiction271k WordsCompleted Don't you dare put on airs in front of me, Akainu! I'm talking to all of you! Akainu is invincible. Pirates are forbidden! Whitebeard dies! Blackbeard dies! Shanks dies! Garp dies! Luffy dies! If I, Akainu-chan, had never been born, the Marines would have languished in darkness for eternity! 173Reads6.8Score—Shelves

   Reader note

   Especially the second book, which features the killing of Ace and Coby, and is still from the Navy side.

8. 8 我 Me, Admiral Akainu: I Blow Away the Deserter King from the Start 我，赤犬大将，开局轰杀逃兵王 Crimson Commander赤帅Anime Fanfiction713k WordsOngoing [Unstoppable domination, passion, muscle, swagger, no female lead] The world of pirates, the Summit War. Lin Jin transmigrates into the body of the Marine admiral Akainu! The gears of fate turn slowly, and the course of the future begins to change. Dreams and reality, magma and fire, light and darkness. The Four Emperors, the Five Elders, and Imu... The blood-red rose on his chest is a fading tear of red. Rather than condemn evil, it is better to uphold justice! Looking back 434Reads8.7Score106Shelves
9. 9 海 One Piece: Marineford's Max-Level Blacksmith 海贼王：马林梵多的满级铁匠 Argumentative Little Radish杠精萝卜头Anime Fanfiction1.4M WordsOngoing [One Piece fan fiction, Marine-focused, no harem, light and relaxing, laid-back] In his previous life, Tie Chui was a renowned bladesmith. Then one day, he transmigrated into Pirate King. His goal was to become a blacksmith in Marineford and while away his days in comfort. But for some reason, he found himself getting further and further from that goal... . . Marines Sengoku: Tie Chui! The Marines are running short on funds this year. Hurry up and forge a batch of fancy swords so I can trade the 14.4kReads8.6Score892Shelves
10. 10 海 The Navy’s Sword God, Nemesis of the Monkey Family! 海军剑神，蒙奇一家天敌！ Rice Ball Bun米饭团子包Anime Fanfiction527k WordsCompleted [Multiple female leads, no System, Mythical Zoan fruit, starts going off the rails after the Paramount War] The protagonist is a Marine. He has no System, never betrays the Marines, and kills without hesitation or mercy. After years of brutal training, he became the Marines' strongest admiral. Codename: “Sword God” Tyre! The million souls slain by his blade are the foundation of that title. (It gets exciting after Chapter 14, with pirates slaughtered in droves. It's relatively realistic and may 2.6kReads7.5Score257Shelves
11. 11 海 One Piece: Isn't the Great Sage Equal to Heaven Just a Monkey? 海贼：齐天大圣不也是只猴子吗 Add a Bowl加碗Anime Fanfiction239k WordsCompleted [One Piece + System + Leveling + Satisfying Power Progression] Lin Qi transmigrates into the world of One Piece, gets the most ordinary Monkey-Monkey Fruit, and activates the Simplification System. After awakening his Devil Fruit ability, his power ceiling becomes fixed. How can a monkey with a stick be this strong? Wait, why does his monkey have armor, too? And why does he have clones... The Gum-Gum Fruit can awaken into the Human-Human Fruit, Model: Nika, so what's wrong with my Monkey-Monkey 1.1kReads5.8Score101Shelves
12. 12 海 One Piece: Old Man, Wait for Me 海贼：老爹，等等我 Li Xiaojiàn理小贱Anime Fanfiction1.2M WordsCompleted (A new journey + slow burn + no System + Whitebeard’s crew + the old era + martial arts powerhouse) “Kid, why are you following me?” “Because if I follow you, I’ll have enough to eat, and nobody will bully me!” “Then go out and make a name for yourself on the seas under mine!” … A young child met Whitebeard, who had just joined the Rocks Pirates. From that day on, the world had one less beggar and one less thief, and gained a man with a monstrous physique! Many years later, when war came, a col 7.6kReads8.6Score403Shelves
13. 13 海 One Piece: Justice Reigns Over the Sea 海贼：君临于大海的正义 Wang, the Terrible Writer文笔极差的小王Anime Fanfiction1.9M WordsCompleted [Justice + Marines + fiery action + almost invincible + no saintly hero + ruthless and decisive + no fawning over Luffy + satisfying power fantasy] Aizen knelt with his head bowed in a pool of blood, corpses scattered all around him. He didn't weep. He simply stared fixedly at his reflection in the blood. In that moment, he finally understood this world... “Kid, I have no home anymore. Come with me. From now on, we'll have each other...” a hoarse voice said beside Aizen. Aizen looked up at the f 4kReads8.0Score175Shelves
14. 14 人 In One Piece, I'm Roger's Childhood Friend 人在海贼，我是罗杰发小 Six-Spirit Immortal六灵仙Anime Fanfiction1.6M WordsCompleted [Two Male Leads] Luo Ya transmigrates into the world of One Piece and becomes a little kid. He thinks that with a System, he’ll be able to punch the three admirals at eight and kick the four emperors at nine. But the System turns out to be as heartless as a greedy landlord: without money, he can’t do a damn thing… So Luo Ya has no choice but to embark on a long journey of odd jobs. After a middle-aged man rescues him, Luo Ya starts working as a waiter at the man’s restaurant. He watches a custom 1.5kReads8.4Score111Shelves
15. 15 海 One Piece: Wudang Bai Ye, Vice Captain of the Straw Hat Pirates 海贼王：武当白夜，草帽团副船长 Xiao Yi Feng萧逸风Anime Fanfiction1.6M WordsOngoing [Joins the crew + chuunibyou + comedy + making up for regrets + no female lead + the most authentic worldbuilding=?] The story starts slowly. The East Blue arc sticks closer to the original plot, and things really take off with the Alabasta arc! A young Wudang Taoist is brought to the Pirate King world by a strange book. He happens upon Luffy just as he sets sail and gets invited aboard. To change this world, Bai Ye chooses to become Luffy’s vice-captain. During the Paramount War, Bai Ye uses 6.9kReads9.3Score513Shelves
16. 16 海EN One Piece: I Am the Flame Emperor 海贼：我才是炎帝 The Farming King种田大王Anime Fanfiction1.3M WordsCompleted He transmigrates into the world of One Piece, lands on Sky Island from the start, and chooses to eat the Flame-Flame Fruit! What? You say the Flame-Flame Fruit is too weak? That's because Oda doesn't understand the Flame-Flame Fruit! What? You say the Flame-Flame Fruit has too low a ceiling? Then I'll give it a reasonable cheat: the Flame-Flame Fruit plus the Heat-Heat Fruit. They're a perfect combination! What? Still not enough? Then let's add the Golden Lion's Float-Float Fruit and throw in te 11kReads9.0Score801Shelves
17. 17 海 One Piece: God-Tier Sign-In System 海贼：神级签到系统 Flowers Bloom and Bloom花开开花开Anime Fanfiction633k WordsCompleted Transmigrate to the world of One Piece and awaken a god-tier sign-in System from the start! Signing in at different locations unlocks powerful abilities. Three Types of Haki! Devil Fruit! Peerless swordsmanship! The strongest bloodline! Sengoku: “Impossible?! How can this guy be so strong?!” Enel: “You... are the real God!” Kaido: “I can't even begin to compare to this guy!” The Empress: “I have never favored anyone so much...” Dragon: “The Revolutionary Army should be under his command...” From 732Reads6.5Score100Shelves
18. 18 海 One Piece: Pirates Slaughter a Village, and I Awaken the Dual Kamui! 海贼：海贼屠村，我觉醒双神威！ Even Cows Have to Eat Grass牛也要吃草Anime Fanfiction407k WordsCompleted [No Harem] [Decisive and Ruthless] [Pirates] [Naruto] [Akatsuki] Everyone who had watched Pirate King believed that pirates were good, free to roam the seas as they pleased. But when Bai Ze, an orphan in his previous life, transmigrated to an ordinary village in the pirate world, he had only just found a family of his own when these so-called “free spirits” slaughtered them. Not a single villager survived! He was stunned... His friends, family, and beloved... all died before Bai Ze's eyes! “Free 980Reads7.6Score100Shelves
19. 19 海 One Piece: I Am a Battle Mage 海贼之我是战斗法师 Snails Have No Shells蜗牛没有壳Anime Fanfiction742k WordsCompleted One Piece fan fiction + battle mage + single heroine (Kuina) + power fantasy The Great Pirate Era! Lin Feng, battle mage! Ruling the seas! With the Battle Spear and Blazing Dance of Flowing Flame in hand, who can stand against me? One lance of Evil-Slaying! Sweeping across the eight directions! I, Lin Feng, will defend the justice that is mine. I'll punch the Celestial Dragons and kick the Five Elders! Sengoku: Lin Feng killed another Celestial Dragon? Garp: Good! Uh... Forget I said that. Shank 4Reads8.6Score—Shelves
20. 20 吃 I Ate the Spatial Fruit and Can Punch Through the World 吃下空间果实的我，一拳轰穿世界 Cold-Mixed Hami Melon凉拌哈密瓜Anime Fanfiction385k WordsCompleted The story begins with him waking up in Shimotsuki Village. No System, no golden finger. With no one to rely on, Tia can only become a disciple at the Isshin Dojo, train relentlessly, and grow stronger little by little. He hones his swordsmanship to its peak, masters top-tier physical techniques through blood and sweat, develops unrivaled mastery of all three forms of Haki, and awakens unimaginable powers in his Devil Fruit. Little by little, Tia reaches the pinnacle of the world, and gradually l 3.5kReads8.5Score192Shelves
21. 21 国 Creating Memes for National Glory: The Tremor-Tremor Fruit from the Start 国运造梗：开局获得震震果实 I'm Really Not Bragging真不是吹的Urban1.5M WordsCompleted [National Fortune + Livestreaming + Summoning + Invincibility + Meme-Making] Yang Ming transmigrates to a world where national fortune is at stake. Everyone’s first college entrance exam binds them to their country’s fortunes, and their first entry into the National Fortune Game pits them against countless races across the heavens. On the day of the exam, Yang Ming obtains the Meme-Making Lottery System. Whenever he recites an iconic line from a movie, TV series, novel, anime, or game, he can ra 20Reads7.5Score—Shelves
22. 22 海 One Piece: I Became Lord Imu's Son 海贼：我给伊姆大人当儿子 Friendly Forces友军Anime Fanfiction757k WordsCompleted Lord Imu: Son, don't be mad. Dad's scared. I'll do whatever you want, all right? Take any Great Grade Sword you like, just don't hurt yourself! Pick any Devil Fruit you want, but you can only eat one. Eating more will kill you! You want Garp to be your teacher? No problem. You want Akainu to bark like a dog? Easy. You want to watch Momousagi dance? Simple. You want to become a pirate? Absolutely not! Shir: I'm going to be the Pirate King, no matter what! 1.3kReads8.7Score103Shelves
23. 23 海 One Piece: I Joined the Marines from the Start, and I Am Justice 海贼：开局加入海军，我就是正义 Just an Ordinary Man本是俗夫Anime Fanfiction719k WordsCompleted The protagonist of this novel is a Marine. He's decisive and ruthless, kills without hesitation, and is nearly invincible, though he has a brief period of growth early on. [Congratulations, Host! Your first draw has earned you the Gale Sword Style!] "Death is like the wind, always at my side! Face the wind! Hasaki!" [Congratulations, Host! Your draw has earned you the Seed of Corruption, which lets you enslave others!] "My heart is clear as a mirror, and all I do is just! Super: Advent of the Wo 5.7kReads8.9Score278Shelves
24. 24 海EN One Piece: Starting by Rejecting Red-Hair's Invitation 海贼：从拒绝红发邀请开始 Ming You Jiu Ge冥幽九歌Anime Fanfiction2.8M WordsOngoing Lin Mo transmigrates into the world of One Piece and activates the Traveler Sign-In System. He earns rewards by completing sign-in tasks at designated locations. Sign in from the start and obtain [Three Types of Haki]. Sign in at Foosha Village and obtain [Fire Style: Great Dragon Fire Technique]. Sign in at Shimotsuki Village and obtain [Cursed Sword: Starshatter]. Sign in at the Baratie and obtain [Flash Step, Night Guy]. Sign in at Loguetown, Drum Island, Alabasta, Sky Island, Enies Lobby, Sa 5.4kReads8.7Score1.3kShelves
25. 25 海EN One Piece: Luffy Invites Me Aboard 海贼之路飞邀我上船 Along the River During the Qingming Festival清明上河图Anime Fanfiction1.2M WordsCompleted The protagonist Yueguang arrives in the world of "One Piece" and is invited aboard by Luffy. From the East Blue and Drum Island to Alabasta, Skypiea, Long Ring Long Land, Water 7, Enies Lobby, Thriller Bark, the Sabaody Archipelago, and the Paramount War, everything changes with the protagonist's arrival. 2.9kReads7.7Score182Shelves
26. 26 海EN One Piece: Starting as a Trash Picker 海贼：开局从捡垃圾开始 Brother Bin斌哥哥Anime Fanfiction989k WordsCompleted “Ding! You found a shattered samurai sword and obtained the supreme Great Grade Sword, Murasame.” “Ding! You found Kaido’s bounty poster and obtained Armament Haki.” “Ding! You found a Devil Fruit remnant and obtained lightning control with no side effects.” … Picking a fight with the Celestial Dragons? No way. The One Piece has nothing to do with me, either. I just want to pick up some trash and make a living, that’s all. I’ll threaten the Four Emperors into dumping their trash and force the 599Reads7.1Score100Shelves
27. 27 人 In the One Piece World, I Sneak into the Straw Hat Pirates 人在海贼，苟进草帽团 Lu Shaofeng吕少峰Anime Fanfiction1.5M WordsCompleted Tagging along with the crew, goofy antics, killing Momonosuke, and all kinds of personal indulgences... If you don't like it, there's no need to curse me out... This should be a comedy... The protagonist's Devil Fruit has a mind of its own. If you don't like that, then I guess this story just isn't for you, so there's no need to come in just to insult me... I didn't manage to keep my head down, and now I can't change the title even though I want to. It's so depressing... The power scaling really 1.8kReads8.3Score105Shelves
28. 28 海 One Piece's Big Boss: The Four Emperors Are All Wage Slaves 海贼大BOSS：四皇都是打工仔 Chenchen's Super Adult晨晨的超大人Anime Fanfiction1.7M WordsCompleted [Invincible + Farming + Behind the Scenes] After arriving in an unfamiliar world, he opens his eyes to find two Systems fighting over him, each trying to outdo the other. When both Systems perish together, Yu Lin is left to live an ordinary farming life on an island. Little does he know that his words have the power to alter reality, and that he is gradually influencing the world. Before long, Red Earl becomes the island’s steward, the resurrected Roger starts growing fruit and vegetables, and G 5.3kReads9.0Score287Shelves
29. 29 海EN One Piece: A Blood Debt, Slaughter the Celestial Dragons! 海贼：灭门之仇，杀光天龙人！ All-Nighter Champion熬夜总冠军Anime Fanfiction878k WordsOngoing Rono wakes up one day to find that he has transmigrated into the world of One Piece. He thought he’d be able to live a happy, peaceful life. But the appearance of the Celestial Dragons shattered that dream! Rono watched helplessly as the Celestial Dragons gunned down his parents! Consumed by rage, Rono awakened a System and swore to kill every Celestial Dragon! And so, a [Supreme Villain] who specializes in hunting Celestial Dragons was born! Wherever Rono goes, the Celestial Dragons tremble in 3.9kReads8.9Score184Shelves
30. 30 海 One Piece: The Strongest Justice 海贼：最强正义 Si Xiliu四夕刂Anime Fanfiction1.1M WordsCompleted [Pirate King + Twelve Zodiac Talismans + Hand-to-Hand Combat + Great Swordsman + Slow-Burn Growth into Invincibility] A man in the world of pirates obtains the golden finger: the Twelve Zodiac Talismans! He steals the Human-Human Fruit, Mythical Zoan, Nika form from Who's-Who! He tramples Kaido of the Beasts beneath his feet and becomes the Strongest Creature on land, sea, and air! The Four Emperors are nothing special! One year Momonosuke: “What did I do wrong?” “Being born was your biggest mis 29.6kReads9.2Score2.4kShelves

    Reader note

    Synopsis: Honestly, the second one is very popular. But I haven't seen it [cool]. I've seen the others, but I can't remember the plot. Anyway, the ratings are pretty high, so it should be alright, right?

31. 31 海 Navy's Most Wanted Killer? I'm Just Living Life to the Fullest 海军杀人狂？我只是在用力的活着 Yang Yang Loves Reading杨杨爱看书Anime Fanfiction512k WordsCompleted [Navy] [Controller of Four Buster Calls] [Purely One Piece Power System] Ryan Hawk transmigrates to the world of One Piece and becomes a lieutenant commander at Marine Branch 16. [Ding! The Justice System has awakened. As long as the Host upholds justice, they will earn Justice Points.] [If the Host fails to carry out justice, the System will carry out justice instead!] “Oh? Well, my apologies, you criminals.” “If you don’t die, am I supposed to die instead?” [Killed Mouse, a corrupt Marine bran 18kReads8.6Score1.3kShelves

    Reader note

    The best-looking ones I've seen so far

32. 32 海 One Piece: Uncle, Your Justice Isn’t Absolute Enough 海贼：叔叔，你的正义不够绝对 biubiu Jottingsbiubiu随笔Anime Fanfiction572k WordsCompleted “Every pirate must die. Not one will be spared.” Luo “Uncle Sakazuki, your magma... is still far too gentle.” I transmigrate to the world of pirates and become Akainu's only nephew. After witnessing pirates slaughter my family, I understand one thing: True justice needs no trial. It demands total annihilation! Having awakened the Logia-type Air Fruit, I can suffocate an entire island! “Surrender?” “Repent?” “No. There's only one ending for pirates, ” “Death!” From the East Blue to the New World 2.3kReads8.6Score126Shelves
33. 33 海EN One Piece: The Strongest Admiral 海贼王：最强大将 Shaking the Heavens撼天阙Anime Fanfiction510k WordsCompleted “This is a dark novel with a warped moral outlook. Righteous readers, please don't open it.” Victor's principles for dealing with the world: 1. History is written by the victors. 2. There is no such thing as justice in this world, only definitions of “justice.” 3. Without power, declarations of justice are empty words. 4. If you have a grievance, take down the person on the throne. 5. I believe only in force, and want to answer violence with violence. 6. What I say goes. Pirates or Marines, it m 1.5kReads7.7Score—Shelves

    Reader note

    Story Summary: Navy

34. 34 海 One Piece: After Joining the Navy, I Went on a Killing Spree 海贼，成为海军后我疯狂屠戮 Yao Zhu药竹Anime Fanfiction1.3M WordsCompleted Taking down the Four Emperors with a beer in hand, kicking the future Pirate King into the dirt! I'm Sochi, the Mountain Bandit King. I speak for myself, and in the East Blue, what I say goes! You ask why I joined the Marines? Sorry, I chickened out. When you're staring down a fist the size of a sandbag, you'll make the same choice I did. What? You say there are good pirates, too? Sorry, forgiveness is God's business. My job is to take them to meet God! 281Reads5.5Score—Shelves
35. 35 海 One Piece: My Pay-Boosting Admiral Can Take Down the Four Emperors 海贼：我加钱大将可干翻四皇 Awake Until Three失眠到三点Anime Fanfiction2.1M WordsOngoing {Pirate King, Marines, daily check-ins, martial arts, master swordsman, fast-paced fun!} In the world of pirates, he obtains a nine-to-five check-in System. He starts getting stronger by checking in at work after joining the Marines. “You think defeating her will earn me a hundred thousand in overtime pay?” “Sorry, I can beat you until you go bankrupt!” “You think I’m going easy on you because you’re beautiful?” “Sorry, you just don’t qualify for a second shearing!” “You want to test my strength 1.6kReads8.0Score130Shelves
36. 36 挂 I Was AFK, but the Warring States Heard My Thoughts 挂机的我，被战国偷听了心声 A Xi Has Gained Weight阿熙吃胖了Anime Fanfiction1.0M WordsCompleted The Great Age of Piracy. The seas are in turmoil, the strong can destroy heaven and earth, and pirates, marines, and rebels are all locked in battle. It should be exciting, but I just can't get into it! I'm Li Hao, a marine, twenty-two years old. My greatest dream is to: Spend my whole life as a lazy good-for-nothing! But then Buddha Sengoku overheard my inner thoughts... 1.7kReads8.1Score110Shelves
37. 37 海 One Piece: Strengthening the Supreme Great Grade Sword! 海贼：强化无上大快刀！ White-Whiskered胡子白白Anime Fanfiction475k WordsCompleted [Navy + Inventions + Feel-Good] After transmigrating into the world of One Piece as Hill, a scientist in the Navy’s Science Unit, he activates the Item Supply System and creates a [Strengthening Stone] right from the start. He draws the Golden Bell Shield, Flying Sword at One Hundred Paces, Gourmet Cells, all three types of Haki, and more from the System to power himself up. He is hailed not only as a “genius scientist,” but also as “the Navy’s strongest admiral in centuries.” Aokiji: “Oh my... 2.3kReads8.1Score129Shelves
38. 38 海 One Piece: I, Akainu's Close Friend 海贼：我，赤犬挚友 Autumn Wind Sweeps Away the Withered Leaves秋风扫枯叶Anime Fanfiction221k WordsCompleted Hong Kai accidentally transmigrates to the world of One Piece. After witnessing pirates massacre the people of a town, he decides to join the Marines and becomes the closest of friends with Akainu. Together, they vow to purge the seas. 608Reads8.7Score105Shelves

    Reader note

    These few books...

39. 39 截 I Snatch the Green Bull Fruit, Then Choose the Buddha of the Summit 截胡绿牛果实，我选择顶上化佛 An Li安吏Anime Fanfiction243k WordsCompleted “Marines + Wood Release + Justice + Decisive and Ruthless” Homan transmigrates into the world of One Piece. Ten years before the Summit War, he obtains the Forest-Forest Fruit, a Logia once wielded by the Marine Admiral Green Bull. “What? The weakest Logia, only good for making flowers and providing support?” “Wooden spikes, wood dragons, wooden giants, thorny vines, Advent of a World of Flowering Trees, life-force absorption! This is what the Forest-Forest Fruit is really for!” At the S 945Reads6.7Score—Shelves
40. 40 海 One Piece: From the Start, Gion Captures Me and Makes Me Join the Marines 海贼：开局被祗园抓去做海军 Flowers in the Mirror of Mountains and Seas山海镜花Anime Fanfiction422k WordsCompleted [Lazy protagonist + Almost invincible + No goody-two-shoes + Decisive and ruthless + Doesn't suck up to Luffy] I was hunted by Momousagi as soon as I made my debut. She wanted to capture me and force me into hard labor. I suspect she's got a yandere streak. Lord Treiste, could you give me a reading? "Want your fortune told? Give me a break! I don't know how to read tarot cards!" "What? You want me to hunt down Blackbeard? No way, that's too dangerous. It'll cost extra." Supernovas? If they don't 1.6kReads8.0Score120Shelves
41. 41 海 After the Pirate Empress Sacrificed Me to the Heavens, the Evil God Awakened 海贼女帝拿我祭天后，恶神觉醒 Who Is a Pig谁是猪Anime Fanfiction685k WordsCompleted [This story is cruel and dark in tone. If that's not your thing, proceed with caution.] Want to see Boa Hancock on her knees, begging for mercy like a dying dog? Want to see the world's noblest race, the Celestial Dragons, pursue a love that defies all decency for the sake of carrying on their bloodline? Want to see the so-called Seven Warlords of the Sea, the Four Emperors, and Navy Admirals prostrate themselves before him and hail him as king? Want to see Momonosuke sliced apart in a slow, ago 6Reads7.0Score—Shelves
42. 42 海 One Piece: The Fruit Hunter Who Subdued the Great Pirate Era 海贼：果实猎人，镇压大海贼时代 Joy in Foolish Waters愚水之欢Anime Fanfiction506k WordsOngoing [No System + Soul Binding + Chaotic Good + Hunter] After transmigrating to the world of One Piece, he becomes an ordinary hunter in a small East Blue village, only to face a pirate raid from the start. Fortunately, he has a ghost ship. As long as he kills his enemies, he can bind their souls. Through those souls, he can acquire memories, experience, and even Devil Fruit powers. So, amid blood and fire, he looks down at the village reduced to ruins and decides to go to sea. He refuses to become a 61Reads6.4Score—Shelves
43. 43 海 One Piece: I Transmigrate as Akainu and Kill the Empress from the Start 海贼：穿越赤犬，开局轰杀女帝 I Just Caught a Few Demons刚擒住了几个妖Anime Fanfiction163k WordsOngoing [Invincible + Decisive and Ruthless + No Goody-Two-Shoes + Stat-Boosting] Wang Qiang, an ordinary young man from the modern city, transmigrates into the world of One Piece and becomes Sakazuki, the Marines’ strongest fighter, codenamed “Akainu.” From the start, he crushes the arrogant, beauty-obsessed Empress and takes on the World's Strongest Man, Whitebeard. This world divides people into ranks and classes. The Celestial Dragons look down on all creation, the World Government stands above ever 2Reads6.6Score—Shelves
44. 44 海 One Piece: This Era Is Called Sakazuki 海贼：这个时代名为萨卡斯基 A Dog Who Loves Sushi爱吃寿司的狗子Anime Fanfiction257k WordsOngoing [Protagonist: Sakazuki (Akainu)]+ [System]+ [Justice]+ [Marines' Perspective] To hell with your pirate dream! This era belongs to Sakazuki! If setting sail is only about voyaging afar, why fly a pirate flag and stir up trouble? 12Reads6.0Score—Shelves
45. 45 海 One Piece: I Transmigrate as Luffy and Take Command of the Marines 海贼：穿越成路飞的我执掌海军 Oh, Neil妙啊尼尔Anime Fanfiction706k WordsCompleted [Feel-Good Power Fantasy] [Two Devil Fruits] [Light Comedy] [Invincible from Start to Finish], Wang Luffy, from a parallel universe, is reborn as baby Luffy in the world of One Piece, and the two become one. Looking at Garp, who is exactly like the grandfather he had just lost, Wang Luffy swears to become the Pirate King of the Marines and change the world, so his grandfather won't be sad. At the same time, Wang Luffy is a professional tragedy preventer. He has to stop tragedies from befalling t 305Reads7.3Score—Shelves

    Reader note

    These are all books about joining the Navy. I haven't read the first two because of their low ratings, but the last four all have ratings above 9.0, Which is pretty good.

46. 46 只 I Only Wanted to Stack Passives, but I Was Forced to Beat Up an Admiral 只想叠被动的我被迫揍了大将 Just a Fleeting Moment不过是刹那Anime Fanfiction924k WordsCompleted What happens when a college student on the brink of death from a terminal illness is swept into the pirate world, where people pursue freedom and live for themselves? Hey, you! Don’t run! Let me stack my passive first! And listen! You lot aren’t even worth being afraid of! 127Reads8.3Score106Shelves
47. 47 海 One Piece: The Gravity User's Absolute Justice 海贼：重力使的绝对正义 biubiu Jottingsbiubiu随笔Anime Fanfiction409k WordsCompleted “Every pirate must die. Not one will be spared.” Luo Lan Transmigrated Luo Lan arrives in the world of One Piece with an extreme hatred of pirates. After a car accident leaves him on the brink of death, he is reborn with the power of the Gravity Devil Fruit and bound to the Pirate-Slaying System. He has only one goal: to slaughter every pirate on the seas and uphold Absolute Justice! The Marines see him as their sharpest blade, and Akainu calls him “the embodiment of justice.” Pirates fearfu 2.6kReads8.2Score140Shelves

    Reader note

    Absolute justice, no saintly sentimentality, decisive in killing, the deserter king Momonosuke is dead! He'll fight everyone head-on!

48. 48 人 In One Piece: From the Start, I Trick Ace into Joining the Marines 人在海贼：开局忽悠艾斯当海军 Drifting Cola漂移的可乐Anime Fanfiction596k WordsCompleted [No brainless characters, no endless nesting plots, no holding back] Sean transmigrates into the world of One Piece. After eighteen years of training, he masters the Three Types of Haki and becomes a master swordsman. Just then, an utterly ordinary System arrives, offering rewards whenever he changes the fates of characters in the story... And from that moment on, everything changes. Enel joins the World Government as a senior official, “Iron Fist” Ace proclaims that he will become King of the M 907Reads8.8Score107Shelves

    Reader note

    This one is pretty good too, um... It's not one of those filler books where the plot can't progress without a main storyline.

49. 49 海 One Piece: I Owe Nobody Anything 海贼：我不欠任何人 Lonely Wanderer孤独的流浪Anime Fanfiction132k WordsCompleted [The ongoing chapters mostly unfold in the present, with flashbacks as a secondary element, along with some follow-up stories that tie up loose ends.] It all began when Dave acquired a loan System... Let me make this clear once again! That wasn't a robbery! They all signed IOUs! I was only lending them money! Capone Bege: “I don't know anything. He just came up and beat the crap out of me.” Crocodile: “I've never seen anyone use a Flying Slash to ask people for money.” Chinjao: “Borrowing money? 31Reads—Score—Shelves

    Reader note

    [Please follow][Cool][Please follow] Author's Choice [Thinking][Cool][Please follow] Coby's death was beyond imagination, Ace was also Bao Si, and Momonosuke's death was unheard of.

50. 50 恶 Devil Fruit: Invincible with the Tremor-Tremor Fruit 恶魔果实：从震震果实开始无敌 Northeast Big Orange Cat东北大橘猫Male-Channel Fanfiction6.1M WordsOngoing [Devil Fruits + Pirate System + Daily System Sign-In + Ruthless] This is an urban version of the pirate world, where Devil Fruits exist. Three types of Haki, the Six Powers, and Devil Fruits. Mu Bai unexpectedly obtains the Tremor-Tremor Fruit in the Devil Tree Realm! He activates the System and signs in every day. Sorry, but the Tremor-Tremor Fruit is just that powerful. His path to invincibility starts here. The college entrance exams! The national league! The world championship! Battles in ot 24.1kReads8.0Score1.8kShelves

    Reader note

    The protagonist starts by acquiring Whitebeard's Tremor-Tremor Fruit, doesn't hide his strength, and violently crushes all enemies from the outset. The fruit is a Devil Fruit type, possessing three types of Haki. He also possesses the Tremor-Tremor Fruit, the Rumble-Rumble Fruit, and the Mythical Zoan Black Dragon Fruit…

Other lists with One Piece: The Navy's Greatest Scum