Iwane: Sword of Serenity

Iwane, Kinpei and Shinnosuke are childhood friends. They also trained at the same dojo, hung out together and dreamt together. Iwane, Jinpei and Shinnosuke also become relatives through marriage. Her husband exacts revenge and kills her when news spreads that one of the mens wives is cheating. The womans brother next rises in vengeance, which leads to murder, which brings about an order of retribution in turn. The womans affair is becoming a bloodbath.