Ashcroft

Ashcroft is Kanna Bismarch's spirit ally.

About
Ashcroft when he was alive was a knight. He is in service to Kanna Bismarch and is very loyal to her.

Anime/Manga Differences
The manga depicts him as an man in a suit of armor and just an nude man with the smoke.

The anime depicts him as just a suit of armor with no body.

In the anime he was given a massive oversoul that looked like a big robot but Kanna could not master it and lost control of it.

Trivia

 * In reincarnation 1's title page there is a giant suit of armor with an ectoplamic skull for a head behind Kanna which is probably Ashcroft.