Michiko Oshitani, who lived in Shiga Prefecture, is found dead at an apartment in Tokyo. She was strangled to death. Mutsuo Koshikawa is the owner of the apartment and he goes missing. Detectives including Yuhei Matsumiya who is a cousin of Detective Kyoichiro Kaga , have difficulties in solving the case. They can't find a connection between Michiko Oshitani and Mutsuo Koshikawa. They soon learn that Michiko Oshitani came to Tokyo to visit Hiromi Asai . They graduated from the same school, but there isn't a connection between Hiromi Asai and Mutsuo Koshikawa. Detective Yuhei Matsumiya finds something near Michiko Oshitani's body. That something has the names of 12 bridges surrounding the Nihonbashi area of Tokyo. Detective Kyoichiro Kaga learns of the clue and becomes agitated. There's a connection with his late mother
1944, in the depths of World War II. Toyomatsu Shimizu is a completely typical barber from a remote sea-side town who lives frugally but happily with his wife Fusae and their five-year-old son. Eventually, though, the army beckons and he is drafted. One day an officer on the battle-field orders him to kill a captive U.S. soldier. Although Toyomatsu lacks the spirit to kill the man, and only wounds him in the arm, the victorious U.S. soldiers will not accept this, and Toyomatsu is arrested and tried as a war-criminal. And he receives the cruelest sentence possible...
Hirayama Koichi and his wife Michiko eloped from Osaka to Okinawa, where they lived happily with their five children. When war erupts, their eldest son is drafted into the Imperial army. As fighting spreads, the family takes refuge far from the city, but soon, child after child is drafted to serve in various branches of the military and in organizations supporting the war cause. Koichi himself is faced with a moral dilemma when he is ordered to kill a wounded American soldier.
