Kim Sul Woo is a top-secret National Intelligence Service (NIS) agent, known only to a few superiors. When the Songsan Group is identified as a national threat, Sul Woo goes undercover as the elite bodyguard for world star Yeo Woon Guang. Woon Guang, a former stuntman turned top actor, is conceited and brash, often bullying Sul Woo. Sul Woo's mission involves infiltrating a private party held by Russian tycoon Chairman Victor to extract legendary wood carvings. However, he must also deal with Cha Do Ha, Woon Guang's manager and former fan club head, who is suspicious of Sul Woo and protective of Woon Guang. As Sul Woo navigates his mission, unexpected complications arise from his interactions with Woon Guang and Do Ha, leading to unforeseen developments in their relationships. (Source: MyDramaList)