Board Thread:Improvements and Issues/@comment-33728110-20200803202155

Retsu is never shown to be using kido with her bankai, only before she activates it (Bleach Manga Ch.526 pg 3). Kenpachi is also never shown to make contact with the liquid. He says he's melting when he hits the ground and his body is still normal. (Bleach Manga Ch.526 pg 7) The liquid only is seen when she first activates bankai. (Bleach Manga Ch.526 pg 4-5) Kenpachi is back to normal after explaining that he was "asleep" before.(Bleach Manga Ch.526 pg 8-9) Kenpachi is also seen as a skeleton in the pages between chapters of the Nnoitra fight. It's a metaphor. (Bleach Manga 3 in 1 Ch.308,310, and 311 pg 280, 320, and 340)

In Bleach Brave Souls Kubo very often supervises or advises on character designs, but the skeletal Retsu makes no appearance in her bankai and neither does burn or poison (to imply acid). [] 