What if Rokushiki is Haki based?

Is Rokushiki a fighting style? If it is, does Luffy use it? - Quora

One Piece: 8 Characters You Didn't Know Could Use Rokushiki

Rokushiki

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

One Piece 1081: Strongest Haki users in One Piece updated ranking

Who's-Who still hasn't revealed his true strength! - One Piece

If there was a fighter with no devil fruit or haki, but they (somehow) mastered every fighting style. How strong would they be? : r/OnePiece

Rokushiki/Tekkai, One Piece Wiki

One Piece: 6 poderes mais fortes que não são Haki

ROKUSHIKI ACTUALLY HAKI POWER- Yaps, - Mugiwara Dangers