Tokyo, 1936.Kudou Sousuke is a pianist who usually plays at a jazz bar, "CADENZA." One night, he gets involved in a peculiar case: a frenzied geisha suddenly attacks him on his way home. Despite getting wounded, Sousuke overcomes the crisis and leaves the scene. The next day at work, Sousuke finds out that the geisha has been murdered and that he is the prime suspect. Upon hearing that, the bar's owner fires Sousuke because the bar cannot afford to employ a fugitive.As a result of being accused of a crime he did not commit, Sousuke is on the run and unable to return home, where his sister...

Tokyo, 1936.Kudou Sousuke is a pianist who usually plays at a jazz bar, "CADENZA." One night, he gets involved in a peculiar case: a frenzied geisha suddenly attacks him on his way home. Despite getting wounded, Sousuke overcomes the crisis and leaves the scene. The next day at work, Sousuke finds out that the geisha has been murdered and that he is the prime suspect. Upon hearing that, the bar's owner fires Sousuke because the bar cannot afford to employ a fugitive.As a result of being accused of a crime he did not commit, Sousuke is on the run and unable to return home, where his sister Yuzuha is waiting. After a while of aimless wandering, he runs into a stunning but arrogant woman with a suspicious background. She promises him temporary safety if he agrees to do some dirty work for her.A few days later, he rescues a young lady from a gang of criminals. He discovers that she is Ayane, who led Sousuke away from the military police the night the woman attacked him. She promises to investigate the mystery surrounding that particular day in order to prove his innocence.