Matoba Kokingo, who once served as a retainer for a hatamoto, becomes disillusioned with his master and elopes with his lover, Oyuki. They flee their lord's household, taking with them 30 ryō of official funds. However, the money is stolen from them at an inn, and shortly after, Oyuki dies of illness. Eight years later, Kokingo has fallen into disgrace, now making a living as a ronin who specializes in extortion. One day, he attempts to extort a restaurant owner named Hanzo, only to discover that Hanzo was the very thief who stole the 30 ryō from him eight years ago…

The final part of the trilogy. It is about a younger brother, Suekichi. He learned well the lessons that life taught his older brothers. Therefore, he does not think to study, but strives for material well-being alone. To make a career, he ruthlessly pushes his colleagues with his elbows. For him, the high ideals of trade union activists Jiro and Saburo are an example of old-fashioned thinking, naive behavior.

"Young People" is a story about the lives of four brothers and a sister, Sato. After the death of his parents, the older brother, Taro, who works in construction, decides to replace them. The second brother, Jiro, is a truck driver. The third, Saburo, is a student, dreams of a better future for the whole family are connected with him, with his career. Brothers and sisters are fighting to give him a higher education. And, finally, the youngest of the brothers, Suekichi, is also going to enter the university after graduation. The life of the Sato family is complicated. Taro is kind, but limited, not always able to find a common language with his brothers and sister Orie. The girl cannot stand the despotism of her brother, leaves her home and goes to work at the factory. With her departure, everything in the house goes upside down. Suekichi fails her university entrance exams, Orie is forced to return to her family.

The second film tells about the life of matured brothers and sister Sato. Taro became a foreman. He saves every yen to fulfill his dream of building his own house with stone gates. Jiro continues to work in the transportation office, he dreams of getting married. Saburo faces a moral problem: in order to get a good position, he must answer the questions of the entrance test differently than his conscience tells him. At the exam, Saburo does not hide his views on life and is deprived of the promised position. Orie and Suekiti believe that he did wrong and betrayed his older brothers. But the anxiety in the Sato family is not limited to these events. Orie was being asked to marry a handsome, well-established young man, but she suddenly announced her decision to marry Tozaka, who was suffering from radiation sickness. Sato's peaceful home is falling apart...

After an encounter with a dying yakuza's son and at his sister Sakura's urging, Torajiro attempts to change his vagrant lifestyle and become an honest worker with a steady job.

Kenji, a disciple of the famous detective Kyosuke Kozu, had a strange experience in the world. He was asked by a woman named Shoko Ima to find the corpse in the soil. Shoko is a famous dancer in the modern ballet world, and she just married doctor Fujimoto 10 days ago. However, on that day, Shoko had disappeared. Her corpse seems to be at the base of the ginkgo tree in the house of the sculptor Kagawa, who was rumored to have a romantic relationship. Police arrested Konosuke. However, Kagawa was also suspicious.