Manga One Piece has a surprise turning point after Timeskip, Arc Marineford led to a major change in the balance of power. The Admiral of the Sengoku Fleet retired after the cruel battle, and his position was empty. Later, Sakazuki won a ten -day -to -hand duel with Kuzan and proved his strength. Sakazuki became the Marine Admiral, and Kuzan left the Navy and joined the black beard.
One Piece Chapter 1081 has a short recall of how Kuzan met with black beard and his crew.
Kuzan also talked about the horror that he faced in the event Ohara and the reason why Robin, an eight -year -old girl helpless. Kuzan is always a gloomy character. He was not as kind as Fujitora, but not as cruel as Akainu.
However, Kuzan helped Robin clearly show that this man has more concealment than appearance. After Kuzan joined the black bearded pirate, there were some theories about Kuzan being a two -member spy, aiming at Imu and One Piece may have been referring to it for a long time.
Kuzan can target Imu in One Piece


In chapter 699, Doflamingo tried to take the Smoker network, but Kuzan stopped him. The villain asked Kuzan where he stood, and the manga clearly showed the reflection of Imu, the mysterious ruler of the world.
This small detail was pointed out by @Naeltheadmiral on X, saying: “I just realized that IMU was reflected on Kuzan's glasses here, just before Dofflamingo asked Kuzan where he was standing and what he was targeting. Perhaps Imu is the goal of Kuzan, which is why he joined the Teacher's tape? “

Although manga is clear, the anime does not show anything like that, that's why fans easily miss this detail. Imu was first introduced in chapter 906, changing our gaze of the world.
The empty throne is a historic throne located on Mary Geise, inside the Pangaea castle, representing the idea of the equal strength between the 20 kingdoms. However, Imu sat on that treasure and was said to be the last villain. If the reflection in Kuzan's glasses is really Imu, then we can expect a clash between two people in the future.
Luffy still did not know the existence of Imu, but as a Admiral, it would not be surprising that Kuzan happened to discover the largest secrets in the world. He also knows more about the brutal actions that the world government caused compared to most people. The fact that Kuzan joined the black beard and fighting Garp was completely unlike his personality. Therefore, it is reasonable when Kuzan has a bigger goal in his head.
In addition, this theory is reasonable when we remember that black beard is one of the goals of Imu, like Luffy, Vivi and Shirahoshi. In addition, black beard also uses the power of the two evil fruits. Kuzan may be working under black beard to find out his secret, and related to Imu.
Finally, it is important to consider this theory with a little doubt because it may be just a coincidence when the reflection looks like that.