Fukaya Zensuke was a teacher for many years and decided to become a probation officer during the second phase of his life. Within eight months of taking on this new role, he has been helping people who are about to complete their prison sentence and on parole turn over a new leaf and return to society. In fact, Zensuke had been looking for an opportunity to do what he hadn’t finished during his time as a teacher by serving as a probation officer. He gets someone he had never met before who doesn’t fit the mold when he is appointed Koyama Yuko’s parole officer. Yuko was convicted of killing her own son. On the day of her release from prison, Zensuke goes to meet her. However, she does something unexpected that takes him by surprise. What is her true intention and how will Zensuke guide her as a parole officer?