When a Man Loves a Woman

After the death of his mom, Ji Hun moves into the home of Mr. Seo. Ji Hun falls in love at first sight with Mr. Seo's daughter, In Hye. Ji Hun also becomes good friends with Seok Hyeon. But one day, In Hye decides to leave home for Seoul to pursue her dream of becoming an accomplished cellist without telling Ji Hun. Seok Hyeon also decides to move to Seoul after he learns that he is the love child of President Kang, a wealthy hotel magnate. When Ji Hun finds out that In Hye left for Seoul without even saying goodbye, he finds his way to Seoul to find her.
One day, while Ji Hun is riding the subway, Jung U takes a liking to him and decides to steal his wallet to get his attention. Through this incident, Ji Hun gets to know Jung U and settles down in Seoul by enrolling in the same bodyguard school that Jung U is attending. The bodyguard training school finds a part-time job for Ji Hun and Jung U, which is an assignment to guard President Kang for one day. Ji Hun protects President Kang at an evening party hosted by Kang himself, and by coincidence, he also meets In Hye and Seok Hyeon. The fates of four young people become hopelessly intertwined after this fateful meeting.
(Source: AsianWiki)