Sleepy Eyes of Death 8: Sword of Villainy (1966)

When feudal lord Itakura Katsuakira decides to prepare his samurai troops for the onslaught of modernization by having them compete in a marathon, his independent-minded daughter Yuki secretly joins the race.

The mother of a feudal lord's only heir is kidnapped by the lord. Her husband and his samurai father must decide whether to accept the unjust decision, or risk death to rescue her.

After years on the road establishing his reputation as Japan's greatest fencer, Takezo returns to Kyoto. Otsu waits for him, yet he has come not for her but to challenge the leader of the region's finest school of fencing. To prove his valor and skill, he walks deliberately into ambushes set up by the school's followers.

Struggling to elevate himself from his low caste in 17th century Japan, Miyamoto trains to become a mighty samurai warrior.

Official Shogunate executioner Ogami Itto has been framed for disloyalty to the Shogunate by the Yagyu clan, against whom he now is waging a one-man war, along with his infant son, Daigoro.

A group of travelers is stranded in a small country inn when the river floods during heavy rains. As the bad weather continues, tensions rise amongst the trapped travelers.

Fearless Edo-period police inspector Hanzo Itami, nicknamed The Razor, has developed his own unique way of extracting information for his inquiries. His first adventure sees him investigating his superior officer's mistress, whom he suspects of having ties with a reputed criminal on the loose.

In mid-19th century Edo period, a masterless rōnin named Mokunoshin Tsuzuki resides in a peaceful village among those he helps. However, as the prevalent peace and tranquility are sure to be replaced by war and conflict across the land, the swordsman feels restlessness creeping upon him.

With most of his family already dead at Ogami Itto's hands, Retsudo launches one final plot to destroy him, and when that fails, unleashes the fury of every remaining member of the Yagyu clan.

Kakunoshin, renowned for his skills with a sword and in the game of go, embodies the samurai code. Falsely accused of a theft, he is forced to become a lowly ronin. Years later, when a case of missing gold pulls him into a new web of intrigue, Kakunoshin uncovers the truth behind his downfall. With the real culprit exposed, the go board flips, and a hellstorm of righteous vengeance follows.