The story is set in 1616 when the first Shogun Ieyasu Tokugawa died after he terminated the long war and realized peaceful Japan.
One day, a puppeteer Kazuma visits Yahachi, who is one of the ninjas serving the Date clan. Kazuma has a mission to deliver something from Tadateru Matsudaira, the young brother of the present Shogun, to Princess Iroha of the Date clan.
It is a legendary bamboo flute called “Nokaze(field wind),” which Tadateru inherited from his father Ieyasu in secret.
What kind of mind does “the rulers’ flute” hand down?
Ninjas are active behind the bonds of father and child, or husband and wife!
Recently, Maneki-neko (a figure of a cat beckoning fortune) is in fashion in Edo town. But people say that a funny cat called Nyanmage, who lives with a police detective Heiji, seems to be more responsive to prayers.
This rumor has escalated into a groundless story that the government set a large price on its head.
One day, Heiji and his follower Hachi patrol the town and come across two samurais, Kazuha and her brother Genji. Although they introduce themselves as masters of a swordplay school, Heiji thinks something suspicious.
Uncertain rumors always confuse the people, also in Edo period!
What will be the fate of Naynmage being targeted?
The story is set in the Age of Civil Wars. Bokuden Tsukahara is a famous master swordsman and coming to a mountain pass in the course of his journey.
A girl named Sakura catches up with him and appeals to him to make her a disciple. He laughs off her determination to hard training in swordsmanship to avenge her father’s death, and tells her about the way of using sword to save lives.
However, the situation suddenly changes because some guerillas appear and besiege them...
The first lesson for a new disciple is to win without fighting!?
Witness the secrets of swordsmanship which cut down not a person but an evil mind!