Yukiko is on her way to meet Boss Gunji. Judging by her appearance, no one would suspect that this beautiful young woman, sitting quietly in a suburban train, is the only woman able to beat the best professional players in Japan; or that she is wearing the tattoo of the man that loved her and died for her...
On his way back to Yokohama, a young boy named Kenji Hase encounters a girl named Yoshiko who is being harassed by the Kaminaryu gang. He rescues her and they head towards Yokohama in Yoshiko's car. In Yokohama, there is an uproar because Kenji's father, Shozo Hase, a customs officer, has been accused of stealing confiscated drugs. The story unfolds with thrilling action as Kenji bravely confronts the gang of villains who framed his father and kidnapped him, all while seeking justice and vindicating his father's innocence.
At Tokyo Gakuen University, Takema, son of Tatsunosuke, chief of the Waku gang, is a freshman who wishes to prepare himself for a better life away from gang activities despite the wishes of his father who wants him to assist strengthen the gang against the Kawano group. Takema's classmate, Akiko, is the daughter of Eiko who operates a restaurant, and through her he obtains a lodging in the house of Shiu, a dancing mistress. The students enjoy their life, but most have their troubles. Sakamoto works as a laborer on the docks to help pay for his schooling, and Akiko worries over the relationship between her mother and Sakurai, a corrupt politician, suspected to be involved in graft over jet aircraft.
The moment he's released from prison, the honorable gangster Miyamoto recovers the stolen diamonds he had stashed before getting pinched. When he returns to his haunt to make good by friend who took a bullet for him, he is diverted by the greedy boss Oyane and his insatiable taste for Miyamoto's precious stones.
Shoichi Kokubun (Yujiro Ishihara) is a roughneck street musician, who has a brother that is determined to propel him into stardom. In attempt to catch the attention of a popular jazz band, his brother appeals to their manager who has the power to make him a star. In a graphic portrayal of love, betrayal and success, Shoichi brews up a storm with a 'rat-a-tat-tat' on the drums.
Eikichi Yamashiro, who is a former contender for the boxing title, works as a manager at a Club Champion owned by his fiancé Natsuko’s father. He lost a title match five years ago as he was besotted by Natsuko, but Eikichi actually cannot give up the dream of the championship. One day, he meets Shuntaro Fuma, who is a punk kid but a promising boxer, and realizes the dream that he himself could never fulfill. Then, they together start to train with the aim of the title. Mari Shiraki is an up-and-coming ballerina under the patronage of Eikichi as well. Eikichi forbids Shuntaro and Mari to be romantically involved with someone during their training, however, they start to go on a date. (source: Nikkatsu International)
In 1906, after finishing a tough migrant job in the Philippines, Takichi has returned to Japan. He starts to work as a rickshaw driver, but his lover had died of an illness, leaving a baby girl, Hatsue. Hatsue grows up beautifully and falls in love with Shintaro. But Takichi objects to their relationship...