Even an undefeated ninja may not survive the Hell's Paradise! Gabimaru is a ninja on death row, with a chance to see his wife again, seeking the elixir of immortality on a supernatural island and delivering it to the shogun. Along the way, he faces his co-defendants and the terrifying beasts that roam the island, devouring or killing anyone they encounter. As Gabimaru and his executioner explore the island, they are attacked by creatures that resemble gods but behave like demons. Is this land of the saints or hell itself?