is a young samurai who is sent on a dangerous mission. He is supposed to find and obtain a secret document, the Naruto Hichou (Hichou = secret document). It is located in Awa, which is located from Osaka beyond the Naruto Vortex.
is the father of Gennojō, a high-ranking direct retainer (Hatamoto) and high official of the shogun, with an income of 7,000 koku.
is the daughter of a family friend and a childhood companion of Gennojō. She is promised to Gennojō and languishes after him.
is the father of Chie and head of the Kōga family. He is an official spy of the shogun and runs a ninja company. He was sent 10 years ago in search of the Naruto Hichou and has been missing ever since. He is already unusually old in the film.
is a pickpocket in Edo. Later it comes to light that she has connections to Yaomi and Chie. She accompanies Gennojō on his journey and is madly in love with him. Mikaeri is her nickname. This comes from the Mikaeri willow, a tree just outside the Yoshiwara entertainment district in Edo, where the men turned around again after their lust and looked at the neighborhood (mikaeri = turn the gaze). Otsuna lives near this tree. Her weapon is a small pistol.
is a police commissioner in Edo. Together with Otsuna, he tails Gennojō. His weapons are the jitte (baton) and a kind of lasso with which he intervenes at a distance.
is a samurai from Awa who lives in Edo by street robbery. He always wears a hood because he has an ominous injury that he doesn't want to show. He wants to have Otsuna and constantly tries to kill Gennojō.
is the top disciple in Yaomi's ninja company. Since his boss went missing, he has been working on Chie and wants to take over the family.
is a samurai from Awa who was sent as a killer against Gennojo.
is a young girl from a known family in Osaka. She suffers from tuberculosis and is desperately in love with Gennojō.
was a herbalist and physician (1728-1780). He practiced electrotherapy with a so-called elekiter, a device to produce static electricity. He was a dazzling personality and appears in many Anime and Jidaigeki movies.
is a courtier who lives in exile at the court of Awa because of rebellion against the government. In the film, he's a ridiculously quirky person. The historical model Takenouchi Shikibu is said to have been a very intelligent person.
is the former Kyoto Shoshidai (Representative of the Shogun in Kyoto) and gave the order to Norizuki Gennojō.