Haneul was living a peaceful happy life with her husband, she took care of the household and their two beautiful daughters Hanjin and Jaejin, they were not rich but they were not short of anything, her husband Kang Tae Kyung provided them with everything. His small advertising office helped him cater to his family needs.

Haneul’s contented life shattered when her husband died in a freak accident. Her husband was never a reckless driver, the investigators believed that it wasn’t an accident, somebody intentionally killed him. Haneul couldn’t believe their theory, her husband was very friendly and kind to others, and he has no enemy. Haneul vehemently declined their offer of a bodyguard to protect them.

Characters:

Jang Geun Suk - a rookie agent at the special investigation department, his duty - to protect the family of Kang Tae Kyung.

Kim Ha Neul - the widow of Kang Tae Kyung, mother of Hanjin and Jae Jin.

Kim Hyun Joong - brother of Haneul, office manager of Kang Tae Kyung's advertising agency.

Lee Min Ho - the chief of Special Investigation Department, the bestfriend of Kang Tae Kyung.

Moon Geun Young - as Hanjin, the eldest daughter of Haneul and Tae Kyung.

Jaejin - the youngest daughter of Tae Kyung and Haneul.