A man is brutally murdered and his famed shamisen (a three-stringed musical instrument) called the "Yamabiko" stolen. Prince Kogenta swears to avenge his father-in-law's death and retrieve the family heirloom.
A variety of characters, including ninja Noto, a swordsman disguised as a komuso monk, and a young samurai chasing them, participate in a chaotic bloody battle for 4,000 gold coins that were stolen from Nijo Castle.
A suspenseful Ninja fantasy based on Shiba Ryotaro's novel, woven with the mysterious fate and romance of Shinzo and a beautiful Princess who find themselves at the center of an intrigue surrounding the legendary land of Yasurai in the mountains of Kumano. Hidden gold, the love of a beautiful Princess, and the approaching evil sword all contribute in bringing you a Ninja action thriller that only the legendary actor Okawa Hashizo and the genius director Kato Tai could produce!