The seinen manga Mugen no Juunin
(in english its known as: Blade of the Immortal
) by Hiroaki Samura
is planned for an anime adaptation.
Mugen no Juunin
Blade of the Immortal
The manga is serialized in the seinen manga magazine Afternoon
There are currently 22 volumes released of the manga.
Covers can be seen here
Genre: Seinen, Action, Drama
English wiki entry: