one piece - What skills introduced prior to the formal introduction of Haki are Busoshoku Haki based? - Anime & Manga Stack Exchange

There are 6 techniques that are the keys to Rokushiki. Despite a claim in another answer from a well informed user that none of the CP9 members are haki users, several of these techniques seem to be

Does One Piece have any really emotional parts? - Quora

Finwind, One Piece Role-Play Wiki

one piece - What skills introduced prior to the formal introduction of Haki are Busoshoku Haki based? - Anime & Manga Stack Exchange

one piece - What skills introduced prior to the formal introduction of Haki are Busoshoku Haki based? - Anime & Manga Stack Exchange

one piece - What skills introduced prior to the formal introduction of Haki are Busoshoku Haki based? - Anime & Manga Stack Exchange

one piece - Is Haki visible to other characters? - Anime & Manga Stack Exchange

Does One Piece have any really emotional parts? - Quora

Jinbe/History/During and After the Timeskip, One Piece Wiki

A short guide to Armament/Busoshoku Haki : r/OnePiecePowerScaling

Kaido's Statement THEORY (Ch 1042) : r/OnePiece

one piece - Is Gear Second still damaging Luffy? - Anime & Manga Stack Exchange

one piece - Was the first time Zoro experienced haki in Alabasta? - Anime & Manga Stack Exchange