Haunted by the horrors of a bloodbath he devised, Tetsuo is crushed by guilt. With his village now reduced to ruins, Tsukuyomi gives Tetsuo an ultimatum—to die by the sword, or to avenge Tsukuyomi's fallen brothers and sisters by fighting Kubo head-on. In a final showdown of brains versus brawn, Tetsuo must employ every last trick up his sleeve to defeat the monster behind the massacre and reunite with his family.