Was Rob Lucci's Rokuogan an application of the advanced Haki that Luffy is learning now? - Quora

If Luffy wasn't taught Haki by Rayleigh, how long do you think it would've taken him to learn? - Quora

Did Luffy actually beat Katakuri because he was stronger, or was it because of plot armor? - Quora

If Rob Lucci had managed to actually kill Luffy, would the rest of the crew been able to defeat him if Lucci told the reinforcements for the Buster Call to stand down?

Was Rob Lucci's Rokuogan an application of the advanced Haki that Luffy is learning now? - Quora

If Luffy wasn't taught Haki by Rayleigh, how long do you think it would've taken him to learn? - Quora

What is Conqueror's Haki? What would happen if Luffy had awakened it before his battle with Kaido? - Quora

If Rob Lucci had managed to actually kill Luffy, would the rest of the crew been able to defeat him if Lucci told the reinforcements for the Buster Call to stand down?

What is Conqueror's Haki? What would happen if Luffy had awakened it before his battle with Kaido? - Quora

Does Rob Lucci Have Conqueror's Haki? An Analysis : r/OnePiece

Was Rob Lucci's Rokuogan an application of the advanced Haki that Luffy is learning now? - Quora

In One Piece, why do the members of CP9 learn to use the “six powers”, but not haki? - Quora