Fans of One Piece have found a new theory that could make us see a character in a whole new light. This theory is focused on two legendary characters who were part of Joy Boy's past: Imu and Zunesha. Since Oda has revealed information about Imu's abilities, especially his most terrifying power, Domi Reversi fans are wondering if Zunesha is under his control.
This means that the punishment Zunesha is facing, to walk the seas for eternity, might not be because he committed a crime, but rather due to a direct consequence of Imu's misuse of its powers. The theory first became popular on social media platforms like Reddit and X (formerly known as Twitter).
It is causing One Piece fans to have intense debate among themselves, and everyone has one question on their mind: Could Imu’s demonic powers have turned one of Joy Boy’s greatest allies into a cursed wanderer?
Zunesha: Joy Boy’s fallen companion

Zunesha was introduced in One Piece. He is a massive elephant carrying the island of Zou, and arguably is also one of the ancient beings who still live. It is established that it is over a thousand years old.
The reason why this character is relevant and has grabbed the attention of fans is that it once roamed the seas alongside Joy Boy during the mysterious Void Century.
However, Zunesha is seen to be walking in the ocean, as it is a punishment for a crime he allegedly committed. To date, the creator has not revealed any information regarding what crime it was that deserved a punishment of this magnitude.
Fans have noted that this punishment always felt eerily personal, as though it wasn’t nature, gods, or even Joy Boy who sentenced Zunesha, but someone wielding immense authority and supernatural control. That’s where Imu’s Domi Reversi enters the discussion.
What is Domi Reversi in One Piece?

This concept was first introduced during the Egghead arc. Domi Reversi is one of Imu’s most sinister techniques. Through it, Imu can seemingly possess or “invert” the will of others. It uses this power and transforms them into demonic versions of themselves.
Moreover, anyone who is a victim of this power is further stripped of autonomy and consumed by the “power of evil.” This dark ability is not merely about control; it’s about reversal, twisting loyalty, morality, and even physical form. When used against others, it creates beings loyal only to Imu, forcing them to act against their nature.
The crime that changed history

If we look closely at some of the details of One Piece, there is an interesting lore that includes both Zunesha and the Ancient Robot (Emeth) once served Joy Boy, and both later apologized to him for “failing” their promise.
As readers, we can interpret this shared guilt as implying that they acted against Joy Boy’s will during the Void Century. After looking at this, if Imu did use the Domi Reversi technique on both Zunesha and the Robot, it would be a fair explanation as to why they participated in acts that led to Joy Boy’s downfall.
Final thoughts
Eiichiro Oda has always enjoyed leaving obvious details in the story of One Piece that once might seem insignificant, but then they end up being a huge part of the narrative.
That is why Zunesha’s suffering is tied to Imu’s Domi Reversi ability fits the storytelling perfectly. And if this speculation does end up being true, then Zunesha’s redemption could mark one of the most powerful moments in the entire series, a reunion 800 years in the making.