One Piece: About Kozuki Oden's Haki (Busoshoku/Ryou and Haoshoku).

1.Shouldn't Oden's Busoshoku Haki/Ryou be at least considered as advanced? Roger's profile declares his Busoshoku to be advanced, Rayleigh's profile declares his Busoshoku to be advanced, Zoro's

One Piece: About Kozuki Oden's Haki (Busoshoku/Ryou and Haoshoku).

One Piece: The Strongest Busoshoku Haki Users, Ranked

Here Are 11 Strongest Busoshoku Haki Users in One Piece. Hands are as Strong as a Steel!

One Piece: About Kozuki Oden's Haki (Busoshoku/Ryou and Haoshoku).

One Piece: About Kozuki Oden's Haki (Busoshoku/Ryou and Haoshoku).

The 15 Strongest Haki Users In 'One Piece,' Ranked

One Piece: Haki And Its 12 Subtypes, Explained

Character Profile - Yamato (One Piece)

Which is stronger, infusing conqueror's Haki or Ryuo with Haki? I'm not caught up on the manga so I don't know. - Quora