In the middle of the Edo period, when the finances of the shogunate were in a desperate situation, the shogunate sent its shadow spies to each clan, who secretly planned the abolition of the clans and the seizure of their territories. The Inami clan has mastered the essence of making weapons, thus breaking the law. To protect the clan, its elders hire three "Shadow Hunters"... TV movie based on the popular manga by Takao Saito.