Digitally remastered, this film is one of the only surviving masterpieces of Sadao Yamanaka, who died at the age of twenty-eight. This monumental work of early Japanese cinema is a spin-off of a popular film series about the character Tange Sazen. While the other films are more focused on murderous intent, this film is a comedy drama, recreating the image of the character of the bodyguard Sazen with humour and humanity. A highly reputable work and often named by many critics as one of the best Japanese films.

The lord of the Yagyu Clan in Iga discovers the kokezaru pot he used to own contains a treasure map that reveals the whereabouts of a huge amount of money. The pot has already been given to his younger brother Genzaburo who has recently married into a family in Edo. The lord sends a messenger to Genzaburo to get back the pot, only to find out that his wife has sold it off to a random junk dealer believing it to be just some sort of rubbish. The pot ends up in the hands of Chobiyasu, a young orphan boy, who is using it as a goldfish bowl. Meanwhile, the bodyguard Tange Sazen decides to take in Chobiyasu and look after him, all the while not knowing anything about the hidden secret. And the chase for the pot begins.