A longtime celebrity Yeo Woon Gwang suddenly has a need for a bodyguard and hires Kim Seol Woo, a man trained in special investigations. He’s described as a mysterious man of many talents, and the drama is about the twisty events they encounter and the budding bromance between the star and bodyguard.

A secret agent works under cover as a bodyguard and is forced to deal with both national security mission as well as a temperamental supertar.