One Piece: I Told You Not to Call Me an Iron-Eating Beast

After Roger's death, the world entered the Great Pirate Era, and from then on, the Pirate King became the most popular premise of the age. Countless people set sail in pursuit of the distant One Piece. Luo Tangqi was among them, but unlike everyone else, he didn't want to become king. He wanted a world without kings. The story begins in the South Blue. (PS: The protagonist's abilities: devouring metal and dreaming.)