Young Public Prosecutor Okino Keiichiro is assigned to the department of Tokyo Public Prosecutors Office which deals with violent cases. He is thrilled to work with Mogami Takeshi whom he admires. One day, an elderly money lender is killed and Matsukura Shigeo is identified as a suspect. He borrowed money from the victim. In his past, Shigeo testified in a female middle school murder case. Takeshi is aware of the heavy grief carried by the deceased girl's family and he tries his best to prove Shigeo's guilt.