It's X-Men meets Romeo and Juliet in Ten Shimoyama's ninja action thriller. Gennosuke (Joe Odagiri), from the Koga ninja clan, falls in love with Oboro (Yukie Nakama), from the rival Iga clan. Already exiled to the mountains, the evil Shogun aims to eliminate the tribes. He pits the clans against each other in a duel to the death, where the ninjas wield their supernatural powers. But will inbred hate snuff out forbidden love?