The "deep paper" likely refers to the high-stakes emotional and narrative depth of the episode, which includes the following key events:
: Witnessing Luffy's potential, Whitebeard orders his entire crew and allies to back Luffy up and clear a path to the scaffold. One Piece Episode 479
One Piece Episode 479, titled , is a pivotal moment in the Marineford Arc where Luffy finally reaches the execution platform. The "deep paper" likely refers to the high-stakes