The introduction of Kuzan aka Aokiji, who was a Marine Admiral before timeskip. Timeskip? Was? Heh. Did I mention how much I love him? Can't wait to see him back in action after timeskip even though he was in One Piece Film Z (the latest film) and that's not a canon dammnit.So in this volume, Luffy, Robin and the crew must face the most biggest (actually two) challenge that will determine the crew's fate. All thanks to Kuzan.