Wano Country is one of the most important places in the One Piece world and holds great significance to the overarching plot of the story. Being name-dropped as early as the Thriller Bark arc, it was always going to be a country of huge significance, especially considering the fact that this place was described to be the land of the Samurai. Thriller Bark introduced fans to characters such as Ryuma, Oars, and Gecko Moria, all of which were deeply tied to the land of Wano, which fans got to experience properly after the timeskip of One Piece.