The Ham family has a good relationship with Yoo family .They both were richer. They promised each other that if one family has a son and other had a daughter, they would engaged them. The little girl with cute face was born in a Ham family. Her parents gave her a name Ham Eunjung. The girl was so manly and liked to have fight with boys in the village. Her parents weren't happy with this. 3 years later Yoo family received a son , Yoo Seungho.... This kid's future would be a well-known  man . But no one knew the real backround of this family. Yoo family wasn't richer in the past. ...  Little Eunjung had a good memory with a poor boy who was younger than her 3 years same age with Seungho. She wished to meet him again, she didn't even knew that she already had fiancé who was Yoo Seungho. No one knew the real backround of that boy....  Many years later... Ham Eunjung grew up with the nature beauty with lovely face, there were slot of men fell for her ... She considered Seungho as her younger brother , but for Seungho, Eunjung is his future wife. In a fencing contest to be a guard of Yoo family,  a tall handsome man appeared with cold face to against Seungho who was a judge and fighter as if they were enemy long times... Lee Jungshin was the man's name. Jungshin won to be a guard. Finally, Eunjung found that Jungshin was a boy that she waited...