One Piece: Pirate Kingdom

"Just call me the Pirate Prince, because I'm going to prove One Piece exists and become the Pirate King. Even if it kills me, even if my journey takes me to the ends of the earth, I will find it!"

One Piece: Pirate Kingdom is a a fanfic written by Shonen King 69. The story takes place 108 years after the death of Monkey D. Luffy and follows the story of Vincent, a boy bearing a Snake's Mark, a mark of evil that almost got him executed, as he searches for the legendary One Piece to prove it real with his crew called the Vincent Pirates which is made up of:

Ignacio Sulblack, Vincent's slightly schizophrenic First Mate. He ate the Oni Oni no Mi, a Mythical Zoan, that gave him shapeshifting abilities as well as the ability to manipulate flames. His dream is to find and kill the man who killed his his father.
Aria, the crew's ditzy Musician. She ate the Kuji Kuji no Mi, a Paramencia that gave her the power to shrink any objects she touches at will. Her dream is to see the world she was sheltered from all her life.
Camen M. Carter, the crew's Navigator and resident Sane Woman. She along with Vincent are the only members in the crew with no Devil Fruit powers, but she makes up for it by have many martial art techniques under her belt. Her dream is to become a strong warrior.

Currently, the story is in the middle of the Ragnarok Saga which can be read here or here: This mainly name comes to a plan deigned by the Marines, which objective is to destroy all the pirates in the world. Details about it have not been revealed. During this saga we have seen 3 important fights. One between Vincent an his old friend Eugene, one between Carter and Mary Sue and one last between Ignacio and Monksir, the man who murdered his father. The current arc of the story is the Garden of the Celestial Dragon Arc.

The previous arcs are the following:

The Mary Sue Arc: Chapters 1- 4
The Lucha Island Arc: Chapters 5- 9
The Black Skull Fushi ArcChapters 10- 14
The Butcher Pirates Arc: Chapters 14- 20
The Forewarning Arc: Chapters 21- 34.

Tropes used in One Piece: Pirate Kingdom include:

Abusive Parents: One actually, Vincent's father, who attempted to kill him right after he was born in a big public display.
Action Girl: Rose and the girls of the Vincent Pirates.
Action Prologue: The story begins with the hero's almost execution at birth!
Aerith and Bob
All of the Other Reindeer: Snake Mark Bearers often get this treatment.
And the Adventure Continues...: Chapter 1 is this to the canon.
Asskicking Pose: The Vincent Pirates all have one they do before using their signature attacks.
Authority Equals Asskicking: It's a One Piece fanfic, what do you expect?
Back-to-Back Badasses
Badass Normal: Anybody fighting without a Devil Fruit is most likely this.
Badass Crew
Belligerent Sexual Tension: Between Vincent and Rose?
Big Bad: Word of God, the first one is going to appear in a few chapters.
The Lancer: Ignacio to Vincent.
Bi the Way: Vincent, as he admitted in Chapter 36.
Boke and Tsukkomi Routine: Carter and and Aria often go into a variation of this.
The Butcher Pirates
Butt Monkey: Ignacio appears to be this the Vincent Pirates.
The Captain: Obviously...
Charles Atlas Superpower: Both Vincent and Ignacio, though with Vincent, it went towards Super Speed.
Calling Your Attacks: Its a fanfic of a Shonen series after all...
The Chick: Aria is one to the Vincent Pirates, but only through default.
Charles Atlas Superpower
Cliché: Vincent finds Frankenfuhter to be just one big one.
Curb Stomp Battle: Vincent vs Fushi. And then in the Forewarning Arc; Carter VS Mary Sue and Ignacio VS Monskir, with Ignacio losing... badly...
Dude Looks Like a Lady: Vincent to Aria. Though, it's justified as she grew up with only women and here only knowledge of how a man looks like is based on stereotypes (i.e. Large Muscles) which Vincent doesn't fit.
Lightning Bruiser: Vincent. He claims to be the fastest thing alive and so far he has proven himself worthy of the title. He is also pretty strong despite his lack of muscle mass.
Mad Scientist: Dr. Frankenfuhter.
Playing with Fire: A secondary effect of Ignacio's Oni Oni no Mi fruit.
Razor Wind/Blow You Away: Many characters have wind based attacks, most notably Vincent, who is justified by using his speed to create the wind.
The Rival: Eugene to Vincent, even when they were kids.
The Smart Guy: Carter is this, not just because she's the Navigator of the Vincent Pirates, but because she is The Only Sane Man as well.
Stern Chase: Vincent gets this about every arc, sometimes, dragging his crew into it as well. And of course, they are pirates, so staying in one place isn't a very smart idea.
Too Kinky to Torture: Vincent, who was hoping for bondage torture from Dr. Frankenfuhter.
Tournament Arc: Though we only seen the end of the tournament in the Lucha Island Arc.
Woobie, Destroyer of Worlds: Kobura is an homicidal maniac who wants to kill everyone but as he revealed to Vincent, he is only like this because everyone he's ever known hates him because of his Snake's Mark. He also hits that most Snake Mark Bearers are like this.