4 Go Keibi Last Part (Takarajimasha Bunko)

[Machine Translation] No. 4 security, that is, bodyguard services by a private security company. Asahina is a former police officer with a strong sense of justice, and Ishimaru is a middle-aged coward. Although they are completely different in age and personality, they begin to trust each other as they protect various clients as partners in No. 4 Security. At the same time, the criminal who committed the crime that led to Asahina's resignation from the police force is released from prison in the middle of his sentence. Facing their past fate, what will they find?

4号警備、それは民間警備会社によるボディガード業務のこと。元警察官で正義感の強い朝比奈と臆病者の中年、石丸。年齢も性格もまったく異なる二人だが、4号警備のパートナーとして様々な依頼人を守るうちに、互いに信頼を深めつつあった。その頃、朝比奈が警察を退職するきっかけとなった事件の犯人が、刑期半ばで出所したという。過去の因縁と向き合い、彼らが掴むものとは―。