Each member is forced to grow independently in the locations Kuma sends them to.
The core of this episode is the absolute helplessness of the Straw Hat Captain. For hundreds of episodes, Luffy has overcome every obstacle with sheer willpower. However, against the combined might of Admiral Kizaru, the Sentomaru-led Pacifistas, and the enigmatic Bartholomew Kuma, that willpower is insufficient. One Piece Episode 405
The Despair of Separation: An Analysis of One Piece Episode 405 Each member is forced to grow independently in
The realization that they must become stronger to survive the New World. the Sentomaru-led Pacifistas
Though tragic, Episode 405 is the "necessary death" of the Straw Hats as they were. By separating the crew, Eiichiro Oda sets the stage for: