The Best One Piece Yamato Joins Straw Hat Ideas . In doing so, luffy became yamato's savior, just as he saved characters like nami, robin, and most recently, sanji in whole cake island. A lot of one piece are hoping for yamato to join the straw hat pirates on their adventures. Why Yamato will not join the Straw Hat Pirates One Piece from www.opfanpage.com The same happened to brook. An example is that currently in the wano country arc there are several new characters appearing in the story. Yamato's 9 strongest abilities, ranked.