Imu in One Piece is the secret supreme ruler of the World Government, sitting on the Empty Throne and hidden from the public eye. They are one of the biggest mysteries in the series and a major figure in the final saga.

Quick Scoop

  • Who they are: The true top authority behind the World Government, above the Five Elders.
  • First appearance: Imu first appears during the Reverie/Levely arc in Chapter 906, and in the anime around Episode 885.
  • Why they matter: Imu is treated as one of the main overarching antagonists of the series, with huge influence over world events.
  • What’s known about them: Their identity, gender, full powers, and exact history are still intentionally mysterious.

Story role

Imu’s existence is kept secret to preserve the illusion that the World Government has no single ruler. Recent story developments show Imu acting with direct authority, including commanding the Five Elders and other forces tied to the Government.

Why fans talk about Imu

A lot of fan discussion centers on whether Imu is immortal, how long they’ve been alive, and what their connection is to the Void Century. Because Oda has revealed so little, Imu remains one of the biggest “endgame” mysteries in One Piece.

If you want, I can also give you:

  • a spoiler-light explanation , or
  • a full spoiler-heavy breakdown of Imu’s known scenes and theories.