Kerojii

The Four Wise Men are four tiny, old, frog-like members of the Red Arrow Pirates who appeared in the sixth One Piece movie. Despite their group's name, they are not all men. They consist of Keroji, Keroshot, Kerodeek, and Keroko. In the movie, they participated in the second Trial of Hell issued by the Baron Omatsuri against the Straw Hats.