Tange Sazen is determined to protect an outrageous fortune that can save or doom the Yagyu clan from theives in all sides.

Samasuke (Tatsuya Nakadai) lives in Souma Nakamura Han, he was ordered by Karo to murder Kogi Onmitsu (Ninja sent by Bakuhu). However, he was taken aback. He not only lost his right arm, but also his eyes were scared and dropped into a river. 3 years later, he changed his name to Sazen, and was lived in Edo. For some reasons, he got involved in a conflict between Kogi and Kiryu Han over "Kokezaru no Tsubo" which strages 1 million ryo (currency).