The drama describes the lives of bodyguards who work in a private security company as they tackle various security issues facing their clients from stalkers, hatred from subordinates and colleagues and child kidnappers regardless of whether they are celebrities or ordinary people. However, as they are not the police, they do not have the power to arrest people nor have firearms in their possession. For the sake of their client, they must be on standby 24-7 and risk their lives so they are nicknamed as Yongo Keibi (No.4 Security Guard) by industry insiders.
Kubota plays the role of Asahina who works a security guard in the company Guard Keepers and is a cheerful young man boasting of great fitness. He used to be a police officer but quit due to an unknown setback thus leading him to enter the world of private security guards. One day, he is assigned to become a Yongo Keibi and told to team up with Ishimaru (Kitamura) who used to be the president of a company and is such a careful person who thinks before he acts that he is nicknamed as a coward by others now. Being totally opposites, the duo clash with each other but try to work together to protect their clients from danger. Through the course of their work, they find answers as to what it means to protect people and come to terms with their pasts. Abe Junko plays Ueno Yui, a woman troubled over a stalker.
Abe described Kitamura as a cool father and Kubota as a gentle elder brother to her so they had a lot of fun during the filming and would go for meals and karaoke after work. She revealed that Kitamura loves to sing Nagabuchi Tsuyoshi's songs while Kubota's favourite singer was Oda Kazumasa. Upon hearing this, the two actors said that she didn't have to reveal so much to everyone.
Sources: Oricon / Eiga.com