Kayo Agawa decides to become a probation officer, an unpaid state employee who helps rehabilitate those who committed crimes. Her first assignment is to take care of Midori Saito, who assaulted an employee of the accessory store she owned.

Kayo Agawa (Kasumi Arimura) works part-time at a convenience store. She also beings work as a probation officer, but that is a volunteer position that does not pay a wage. Her work as a probation officer is to help rehabilitate ex-convicts and juvenile delinquents. She encounters various ex-convicts and grows as a person and a probation officer.—AsianWiki