Byeon Mu-Jin was married to Geum Ye-Yeon (Kim Ji-Soo). They had a daughter, Byeon Mi-Rae (Son Na-Eun), and son, Byeon Hyun-Jae (Yoon San-Ha), during their marriage. Byeon Mu-Jin attempted various business ventures while married, but they all failed. His family could not take him anymore and they cut him off from them. After going through a divorce, Geum Ye-Yeon experienced difficulties raising her two children by herself. Now, 11 years later, she works part-time at a big mart. Her daughter and son are all grown up. The daughter, Byeon Mi-Rae, wanted to become a person her mother could rely on. She works as the MD at a big mart. She is also the breadwinner of the family. The son, Byeon Hyun-Jae, has a unique charm, but he also the troublemaker of the family.

One day, Byeon Mu-Jin appears in front of his family as the owner of the villa building where they live. Byeon Mu-Jin hopes to reunite with his beloved ex-wife Geum Ye-Yeon and even tries to seduce her, but the daughter, Byeon Mi-Rae, is strongly opposed to her father’s idea. Unlike his sister, Byeon Hyun-Jae supports his dad’s attempt for reconciliation.

Meanwhile, Byeon Mi-Rae gets involved with Nam Tae-Pyeong (Minho). He was once a member of the national taekwondo team and now works as a security at the same mart as Byeon Mi-Rae. He hides his real identity and the fact that his father is the owner of the mart.