One Piece: The False Hero Who Became King of the World

[Multiple heroines, swordmaster, mythical beasts, Marines, righting past regrets, and titles of World's Strongest across multiple worlds.]

Dawn, a transmigrator, rises to prominence as a genius at the Marine training camp. Zephyr calls him “the disciple who comes closest to the very essence of justice.”

He maintains a relationship with Kuzan that is equal parts rival and friend, becoming the goal Kuzan spends his whole life chasing.

Before Fujitora, he becomes a “protector of the common people.” Before Dragon, leader of the Revolutionary Army, he stays up all night discussing equality and freedom, becoming Dragon's closest friend in spirit.

When greed and ambition are tempered into a blade capable of cleaving the world, poised to destroy the rotten throne,

Imu Nerona mercilessly tears away his mask.

“Tell me, those you follow, who exploit their friends, manipulate emotions, and bargain with justice, how are they any different from Me, whom you seek to defeat!?”

As Dawn prepares to face the betrayal of everyone around him, Dragon says, “From the first time I saw the weariness in his eyes, I knew he was putting on an act... But at least he gave me the freedom to choose between hypocrisy and sincerity. The choice has always been mine, while you offer the world nothing but chains.”

Kuzan says, “Desire or ambition, it doesn't matter. A man is at his most handsome when he stands by his convictions!”

Fujitora says, “Hypocritical acts of kindness are still better than naked tyranny. You don't even bother to pretend, sir.”

Years later, the new King of the World writes in his diary:

[More powerful than a perfect persona are the bonds we choose to believe in, even when we know they are false.]

This is the story of an ambitious man with a clear sense of self who goes from a fake Marine hero to King of the World.

(PS: There wasn't room in the synopsis for the other characters and the heroines' lines.)