When Kaido merged with the soul of an unlucky transmigrator, he learned that the world he was in was a manga, and that he was merely a stepping stone for Luffy, the so-called chosen one of destiny, to defeat him.

"What kind of bullshit is Wang Luffy, Chosen One, Joy Boy? I'm going to smash you all to pieces..."

'Ding, system loading...'

Kaido: "So this is the cheat code of that unfortunate transmigrator? It seems that after merging with that guy's memories, I not only know the direction of the plot, but I also have a cheat code to use..."

'Ding, system loading complete. You are not the host of this system. The system will automatically unbind you. Goodbye...'

Kaido: "Damn it..."

(Cheerful, cold-blooded, ruthless, bloodthirsty, ambitious. Kaido is the Kaido from the original work, but one who knows the plot; his personality won't change much.) (Completed novel: "One Piece, Me, Marco, Starting with the Marineford War")

The navy is the navy of the people, not a tool for the Five Elders to make profits." "Justice is not an empty document." "The fruits of justice cannot be produced in rotten soil." Heath stood on the world stage and spoke passionately, with the new three admirals sitting behind him: Ace, with freckles all over his face, was blowing the flames. "Ace, be serious!!" Sabo next to him said dissatisfiedly. ... Luffy in the stands widened his eyes, "Hey, this is not right!!" Garp, who was eating a donut, punched down, "No, no, no, this is absolutely right!!" - Aokiji: Maybe this man can practice true justice. Kizaru: Young people nowadays are so scary! Fujitora: I am willing to bet on Heath.

At the beginning, he became Luffy's brother, went to sea with Luffy, became the vice-captain of the Straw Hat Pirates, and after leaving Luffy, he became the admiral of the navy. Let's wait and see what kind of actions he will make in the headquarters of the navy. ... Kizaru: Oh my, this generation of supernovas is too scary. Hawkeye: My position as the world's greatest swordsman is no longer secure. Sengoku: Garp, look, your grandson is causing trouble again. Liu Luo: Let me see which pirate is causing trouble again.

No system, indigenous, original characters, single or no female protagonist, tells the story of a spotted hat forming a pirate group and conquering the Grand Line with his partners. I am a newbie, please point out any comments and suggestions