Nameless Prisoner or Prisoner KSC2-303
Prisoner KSC2-303 is a reincarnated samurai who for unknown reasons was in prison only to escape & join up with a group of mobsters in a forest that is one of the 666 portals that act as a connection between this world and the next, called "The Forest of Resurrection." After being attacked by the mobsters, Prisoner KSC2-303 flees with a girl, whom the mobsters kidnapped for unknown reasons, into the forest and they give chase. While in this forest KSC2-303 begins to forget things and recall strange events he's never experienced. Meanwhile, the mobsters are forced to contend with all of the men they have killed and buried in the forest as they become reanimated as zombies. The leader of the mobsters appears and speaks cryptically of the power of the "Forest of Resurrection" and begins to seek out KSC2-303 and the girl as well. Upon encountering the man, KSC2-303 is reminded of his past life and the past conflict with this man and of his destiny in this life