The film takes place in Yokohama, a night city where you can revel in the neon mood. A bartender who wants to become a singer and a beautiful married woman burn fierce and ephemeral love in a confrontation with a ruthless yakuza.
Ryosuke Kotaki's life motto was his grandfather's will, "Study, make money, drink alcohol, and win the first prize". So, first of all, he went to Osaka to win the first prize with favorite shogi. In the car, he hit it off with a woman named Okichi and decided to live in the Shogi Kaisho, which is run by Okichi's father, Yoichi. Ryosuke's skill was strong, and he was happy to make a lot of money in gambling shogi. However, he lost to a middle-aged man by dropping four cards. This man was actually Heihachi Kudo, who is said to be the best of both worlds in the Kansai chess world at the time...
Tired of poverty, Keiko leaves home and soon takes a lover, but leads a wanton life without paying heed to his advice. However, the younger sister Yoshiko, is an innocent and kind girl. One day, with the sudden death of their mother in a car accident, Keiko learns that she and Yoshiko are actually stepsisters, and that she is the daughter of a murderer. She now plans extortion from Yoshiko's true father who is the president of a well-known trading company.
Yuri is looking forward to marrying her fiancé Minoru. However, a few days before the wedding she falls victim to his brother Takehiko, and against her will, she becomes Takehiko's wife. The day after the wedding, Yuri begins her silent revenge by not talking to her husband. She retains her love for Minoru and never gives herself to Takehiko's embrace again. She also contributes large sums of money from Takehiko's fortune to charity.
The film is about the Yamato's suicide mission to Okinawa in March 1945 to defend the homeland threatened by U.S. bombers. Adapted from Mitsuru Yoshida's 1952 book "Requiem for the Battleship Yamato".