1. Number of appearances: This appeared in the special article of the 59th episode, in which some main characters of One Piece, Dragon Ball and Gourmet's captives appeared.

2. Reason: I attended a conference and got a barbecue in the competition (because all of them were foodies).

3. Ending: the Monkey King, Luffy and Aru played against each other, and the ending was a draw. Then the three men teamed up to deal with a monster.

Extended information:

Nautical King is a juvenile cartoon work drawn by Japanese cartoonist Eiichiro Oda, which began to be serialized in the Weekly Juvenile Jump on the 34th, 1997. The adapted TV animation Nautical King premiered on Fuji TV on October 2th, 1999.

on may 11th, 212, Voyager won the 41st prize of Japan Cartoonist Association? [1]? . As of June 15th, 215, Nautical King has issued a total of 32.866 million copies in Japan, which was officially certified by Guinness World Records as "a series of comics created by a single author with the highest circulation in the world".

On July 21st, 217, Japan Memorial Day Association passed the certification, and set July 22nd every year as "ONE PIECE Memorial Day".

Reference:

Baidu Encyclopedia-One Piece