One Piece has always thrived on mystery, and few events are as legendary—or as confusing- as the God Valley Incident. For years, fans believed that Kaido, the “Strongest Creature in the World,” might have betrayed his captain, Rocks D. Xebec, during that historic battle. However, new details from the flashbacks suggest that Kaido’s so-called betrayal was never against Xebec at all.
When the God Valley flashback dropped, One Piece fans were stunned by the chaos unfolding. The island became a warzone, with the Rocks Pirates facing off against Gol D. Roger, Monkey D. Garp, and the mysterious forces of the World Government (Imu).

Among the crew’s powerhouses stood Kaido, Big Mom, Whitebeard, and Shiki, who are all legends in their own right. Many fans believe their downfall stemmed from betrayal within the crew. With a lineup this powerful, their defeat seems almost impossible, but that remains fan speculation for now.
In One Piece, something very peculiar about Kaido is his Devil Fruit, the Azure Dragon Fruit. His Devil Fruit grants him immense strength and endurance, making him nearly unstoppable. Until recently, how he obtained it was one of the greatest mysteries in the series. The flashback finally revealed that the fruit was originally a prize for the Celestial Dragons’ brutal “Native Hunting Competition.” Big Mom secured it first and intended to gift it to her son, Katakuri, but Kaido ambushed her, overpowered her, and devoured the fruit himself. It was a moment of pure pirate treachery.

However, that betrayal was directed at Big Mom, not Rocks D. Xebec. Despite the chaos within the Rocks Pirates, Kaido stood by his captain during the battle at God Valley. Alongside Whitebeard and Big Mom, he fought against overwhelming odds, possibly even clashing with Imu, the mysterious ruler of the World Government. Far from abandoning his captain, Kaido used his newly gained powers to stand his ground and push back against the world’s most dangerous enemy.
It was kind of cute how he appeared beside Whitebeard and Xebec, telling them to look at his new powers while in dragon form. The way he looked excited and how Rocks D. Xebec was talking to Kaido like a proud father did not have an ounce of animosity. If not for Whitebeard, who called them back to reality, who knows how far they’d have kept talking about Kaido’s new ability?
What Kaido said earlier in One Piece
The idea that Kaido betrayed Rocks is basically inspired by One Piece Episode 996. In it, Kaido tells the Red Scabbards that pirates might abandon their comrades in times of trouble. It appears many fans interpreted it as a confession. But with the new flashbacks, that seems far less likely now. He was probably referring to what he saw, not what he did. Kaido may have seen other members of the Rocks crew betray Xebec, but he was not among them.

It’s also worth remembering that the Rocks Pirates were never a family like the Straw Hats in One Piece. They were a collection of powerful egos forced to cooperate under Xebec’s command. Loyalty wasn’t their strength. Survival was. So while Kaido may have betrayed Big Mom to gain power, he still fought fiercely beside Xebec in the final battle. If anything, what he’s done is more pirate-like. In the words of Captain Jack Sparrow, “Take what you can; give nothing back.”
Kaido’s actions at God Valley show his hunger for power. He saw an opportunity to seize the power of legend and did so. Even if that meant coming out against an ally. But he never let his captain down and did not abscond. He fought alongside him. With Whitebeard. That distinction matters because it separates ambition from treachery.
Conclusion
In the end, the real betrayal at God Valley wasn’t Kaido turning on Rocks D. Xebec; it was Kaido betraying Big Mom. One Piece often blurs the line between loyalty and ambition, reminding us that in a world ruled by pirates, even the strongest must make ruthless choices.