After going through a divorce, Ae 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, 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, Hyun Jae, has a unique charm, but he is also the troublemaker of the family.

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

Meanwhile, Mi Rae gets involved with Nam Tae Pyung. He was once a member of the national taekwondo team and now works as a security guard at the same mart as Mi Rae. He hides his real identity and the fact that his father owns the mart.

(Source: AsianWiki)

An Jeon Man is a safety-first man with a prudent and cautious personality. He works as a risk surveyor whose job is to suggest accident prevention measures and effective insurance programs. He joins the divorce insurance team, which is the biggest adventure of his life. Jeon Na Rae is a financial mathematician. She divorced as soon as she returned from her honeymoon due to different values between her and her ex-husband. She has never regretted a choice or decision that she has made. She joins the divorce insurance team as a special advisory quantitative analyst.

In an era when divorce rates are skyrocketing, No Gi Jun decided to develop an insurance policy for divorce, with the idea that a divorce is an unexpected disaster in a person's life. He sets up a divorce insurance team, with Kang Han Deul, An Jeon Man and Jeon Na Rae joining the team.

(Source: AsianWiki; edited by MyDramaList)