A new ‘One Piece’ theory suggests Gear 5 isn’t Luffy’s final form—and that a legendary weapon could unlock his true power.

Luffy and Blackbeard's rivalry is the most profound in One Piece, representing good vs. evil. Previous character rivalries ...

Oda-sensei, this better be a cruel prank, because One Piece has no right to make us cry twice with Kuma and Loki's tragic ...