Post-war South Korea in 1953, Heo Sam-Gwan (Ha Jung-Woo) works on a construction site and helps his uncle to farm. The guys in his village can't get married, until they are able to sell their own blood.
Lee Kang Hoon (Sung Hoon) is a wealthy heir who is attractive, but he cares little for the feelings of other people. Cha Yoon Seo (Kim Jae Kyung) is a cheerful and lovely veterinarian who runs her own animal hospital.
Description: Hiroko Matsukata(Miho Kanno) is a super busy magazine editor. Just like any other 28-yearold woman, she enjoys going on dates with her boyfriend, fashion and her private life. But once she turns her switch into working mode, she sacrifices all that and dedicates her life to work. That’s when her colleagues refer to her as the Hataraki Man (working man). Her success at work however doesn’t give her total satisfaction. She constantly questions: “Why do I chose work over my boyfriend?” “What am I working for?” These are the questions all working people have asked themselves once, and the viewers can’t help relating themselves to Hiroko’s experiences.
“Why do people work?”  ... The viewers and the characters of this uplifting drama search for the answer through different types of working people, who all imply different answers to the question: a sense of accomplishment, fulfillment, mission, obligation, happiness, or…?