"Kozuki Oden? A fool who can enter a museum."
The person who said this is called Moonlight Moria. The former king of the Shichibukai has a bounty of 320 million, and is known as the "weakest" in the world.
Twenty-three years ago, he led his entire group to attack Kaido, and they were all wiped out. He was the only one who survived. Twenty years later, he was expelled from the World Government and thrown into the largest cemetery in the New World to die.
But he didn't die.
He climbed up from the cemetery and discovered one thing: the real use of the Shadow Fruit is not to control the body of the dead, but to fulfill the wish of the dead.
So the "Weakest Shichibukai" returned to Wano Country with the shadow of fulfilling his wish.
He tied Momonosuke to Oden's statue and said to the people who had been kneeling for twenty years: "That thing you are kneeling on is an idiot. I don't need you to kneel on me - I need you to stand up."
Then he defeated Luffy and said to him: "Straw Hat Boy, you can only knock away enemies one by one. Do you really know what justice is?"
Kebi was also defeated by him, and he stepped on Kebi's head: "You deserter king, why don't you save your master? You are a sanctimonious villain!"
Finally, he stood in front of the gate of Mariejoia and said to the five old men who had lived for eight hundred years:
"Who signed the document that was said to be my weakest back then?"
(No system, overall close to the original work)