Board Thread:General Discussion/@comment-39485443-20190924215819/@comment-36009152-20200104233530

In terms of the weapon Shikama Doji's scythes can fight against black demon weapons, yet can be blocked by black demons if they appear in the flesh... appear in the spirit XD

Most likely it's a unique classification the Japanese Imperial Demon Army have documented, but not revealed for reasons only they know.