Read manga: Mutsu Enmei Ryuu Gaiden - Shura No Toki

manga
Summary:

Even since the Heian era, the members of the Mutsu family have practiced an unarmed martial art, the Mutsu Enmei Ryū. They walked the path of the undefeated and were called the Shura no Mono (Men of Carnage). This is their story.Sequel:> Shura no Mon(http://bato.to/comic/_/shura-no-mon-r4521)