Cross Epoch

Dragon Ball x One Piece: Cross Epoch (クロス エポック) is a Japanese manga by Akira Toriyama and Eiichiro Oda. It is a crossover between their respective Dragon Ball and One Piece series. Cross Epoch was released on December 25th, 2006 in the 2007 #4/5 issue of Weekly Shōnen Jump, and it later appeared in the April 2011 issue of the English Shonen Jump (issue #100).