Manga, the flame like ryou is the result of overflowing coa. now zoro can do it himself.
the smoke effect become part of the swords the same time king says zoro has haoshoku
![](https://i.imgur.com/0L9b2SJ.png)
before this moment : no smoke and no haoshoku
after this moment : smoke and haoshoku
your conclusion : the smoke is indication of ryoo not advcoc
smoke and lightning = king of hell = advcoc
i thought zoro fans could only see zoro piece but they do not even understand zoro