One Piece chapter 1047 unveils a significant revelation: Pirate King Roger attained the pinnacle of strength without consuming a Devil Fruit.
As the intense battle between Kaido and Luffy reaches its climax in One Piece chapter 1047, another crucial detail surfaces. According to Kaido, Pirate King Roger managed to reach the peak of power without relying on a Devil Fruit. Kaido informs Luffy that Devil Fruit abilities aren't the determining factor in reaching the pinnacle; rather, it's Haki, which surpasses all else.

From this revelation, let's delve into another character and their legendary battle with Roger in the past: Garp. The marine hero was Roger's formidable rival during the era of the Pirate King. Both engaged in numerous clashes, and neither emerged as the clear victor. Notably, Roger joined forces with Garp to defeat the Rocks Pirates, a fearsome pirate crew consisting of notorious individuals like Whitebeard, Kaido, Big Mom, and their captain, Rocks D. Xebec.

It's highly likely that Kaido's memories of the God Valley battle and the day the Rocks Pirates, along with their captain, were defeated by Roger and Garp helped him realize the importance of Haki. Previously, questions were raised about how Roger and Garp managed to defeat such a formidable pirate crew. Now, the answer lies in the power of Haki.

Author Oda has yet to fully disclose the extent of both Roger and Garp's strength, along with the epic God Valley battle from the past. Even during the ultimate naval battle, Garp merely unleashed a standard punch that left Marco, in his Phoenix form, visibly surprised. This was the sole injury Marco endured during the battle, despite facing off against all the navy admirals.
With just this small detail, we can already see Garp's sheer physical strength is enough to pose a challenge even to a Zoan Mythical Devil Fruit user like Marco. So, when he battles alongside Roger or teams up with the Pirate King to fight the Rocks Pirates, with Haki in the mix, who knows how formidable Garp and Roger would be?

Oda is renowned for his adeptness in creating hints and weaving details into the storyline of One Piece. While readers are still in the dark about Roger, Garp, or Shanks (those who don't eat Devil Fruits) and why they're so powerful, Kaido's latest chapter reveals the strength of Haki.
In the final chapter, this Yonko unveils a new move, and if it's a new form of Haki, perhaps questions about the strength of Garp and Roger will be somewhat answered, and the reason behind the Rocks' defeat will become clearer.
What do you think about Kaido sharing that Roger didn't eat a Devil Fruit, and Pirate King and marine hero Garp defeated the Rocks Pirates thanks to the power of Haki? Share your thoughts!