Kotaro Katsura is the real protagonist of One Piece. He is most popularly known as the father of that butt-Monkey, Dragon D. Luffy. He has an alien companion "Elizabeth", which is revealed to be no other than Bartholomew Kuma. He also has a gay companion with him named "Emporio Ivankov", and his real name is Tokumori Saigo. He is also allies with the legendary samurai Gintoki Sakata, who has entered One Piece under the name "Roronoa Zoro" who has started establishing his Odd Jobs outfit in Wano Country along with Kin'emon, Kanjuro, Raizo and Trafalgar Law. This country is led by the head of the Tendoshu named Kaido who has the real name: spoilers.