In order to discover more about the relationship that binds Kenshin and Enishi, Saito Hajime makes a surprise appearance at Kamiya Dojo - only to find the aftermath of Kenshin, Sanosuke, and Yahiko's desperate life-or-death battles with Enishi's cabal of fighters. One member of the "Six Comrades" remains standing - the mysterious and deadly Yatsume Mumyoi. Will the strength of Saito Gatotsu be enough to fell this freakish warrior-of-the-shadows?!