The story of the love and conflicts of each member of a large family, all of whom have unusual names.

This drama tells the success story of Han Jung Won, a workaholic careerwoman who is determined to make her own way in life without the help of her family, which has garnered considerable wealth from their publishing company. Her life is turned upside down due to someone’s mistake, and she faces numerous setbacks on the road to recovery.

Hwang Tae Hee is the daughter of a chaebol and team leader at her workplace. When Bong Joon Soo and Baek Yeo Jin both begin to work in her team, they become her love interest and troublesome rival respectively. Tae Hee has to juggle her challenges in love with those in work, helping shape her boss and department director, Goo Yong Shik, from an insensitive and uninterested second generation chaebol to a true leader. Tae Hee's seeming success in love, however, presents her with another problem as she begins to realize that marriage involves just as many obstacles to overcome.

Ryu Jin and Go Eun Mi are a married couple who try desperately to conceive a child but are unsuccessful. They turn to surrogacy and this is where Go Eun Nim comes in. She is their surrogate mother carrying their child but things become complicated when she later marries Ryu Jin's younger brother played by Jung Gyu Woon.