In feudal Japan, where ninjas are outlawed and considered a threat, a princess named Koh embarks on a perilous journey to Edo with her men, including Denzo, a former ninja hiding his true identity. As they cross a forest, they encounter a mysterious monster, and Denzo puts his life on the line to protect Koh, who begins to question his motives.

Ninja the Monster
In feudal Japan, a group of rogue ninjas, having avoided detection, secretly thrive, jeopardizing the balance of power.