Nio and Hajime confront an assassin who targets Aizu samurai. But unlike any killer they've faced before, he fights for conviction. Do the boys stand a chance against him with their blades or their words?

Two of the remaining assassins target Serizawa and Hajime while the rest of the Miburo hunt down the final culprit. Can they take the whole gang alive? And how will a lord's patronage change the ragtag group?