One of the biggest, most popular anime and manga series in the world is One Piece. Luffy and his friends have been on their anime adventure since 1999, and have no sign of stopping any time soon. In fact, this story of a band of pirates sailing the open seas and going on adventure after adventure has over 1,100 episodes now, and around the same number of chapters in its manga. One Piece is a familiar part of Japanese pop culture now, and its influence can be seen everywhere if you are looking for it.