342 - One Piece Episode

: This legendary "Black Sword" and Great Grade katana makes its first appearance in this episode, wielded by the samurai zombie Ryuma. It eventually becomes one of Roronoa Zoro's signature weapons.

In this episode, the Straw Hat Pirates split up to uncover the secrets of the mansion and battle an army of the undead. One Piece Episode 342

Watch the Straw Hats' hilarious first encounter with the Negative Ghosts and the chaotic logic of Thriller Bark: : This legendary "Black Sword" and Great Grade