Yoshiki Oyamada

As the Shogun lays dying, seventeen Iga clan ninja are sent to infiltrate the impenetrable fortress where his youngest son is preparing to storm Edo Castle and name himself Shogun by force of arms. They are to either steal the documents that will eventually give him lawful claim to rulership, or they are to assassinate him. But even before they reach the castle walls, they find their every move countered by a ruthless ninja hunter in the employ of the would-be usurper (Konoe), who not only knows their every tactic but knows the exact make-up of their team thanks to his own spies within Edo Castle. As the Iga Ninja fall one by one, the mission's success or complete failure--where failure will result in a bloody war of succession--comes to hinge on a single young and inexperienced ninja (Kotaro).

Oryu the Red Peony, a wandering female yakuza on a soul-searching journey after the death of her father. After collecting her sickly follower from jail, she is taken in by a fishing village. Feeling indebted to their generosity, she stays to work for the village and promises to leave her yakuza ways behind. When a dispute breaks out for the gambling rights to a local festival, the villagers are harassed by a gang of thugs. When the harassment turns violent, Oryu must decide wither to keep her promise or protect the villagers.

In the fourth installment, Musashi's potentially greatest opponent Kojiro jumps in and out of the story at the oddest and most coincidental moments. As his great love Otsu has succumbed to madness. Musashi then sets off to beat the functionaries of a treacherous clan in an arranged duel. 73 against one. Boastful Kojiro watches, secure in the knowledge that only he is a worthy opponent.

Umon goes on an investigation to unveil the murderer known as Red Lizard.

The most dangerous hired gun in Kyushu's underworld has managed to trigger a vicious gang war, and now, there's a contract on his life. Though nobody is more skilled in the arts of dealing death, can the tattooed hitman fend off the entire Japanese mafia as he searches for the man who wants him dead?

Tokijiro has the unfortunate duty according to the code of the gamblers to join in the fighting when afforded a night’s stay and meals at the home of a town boss. Though he dislikes killing, the strength of his swordsmanship will be tested time and time again in the bloody tale.

Part two.

Adventures of famous yakuza boss Jirocho and his disciples who settle in Kofu.