Nue wants to go back in time to 1879 in search of a sword ! meanwhile yohime(her spirit lives in the tree) realizes Nue's plan ! so she sends Rikou back in time to 1878 now he have one year to find the sword and train to control his ki but wait? who is the crimson haired man with the x shaped scar on his cheek ! family surprises and awkward moments , reunions and shocking secrets !