Tae Ho and Sang Goo are two men who constantly fought at work and hates each other even more now that they're both the heads of rival companies. When their children Do Hee and Young Joon get married, the bickering fathers are forced to become in-laws.

Lee Kang Hyun is a manager at a company that sets up people who have been divorced with dates. She meets a divorce attorney, Park Hyun Soo, and they begin a relationship with each other.

This series is about a 19 year old girl, Yoo Min who was being abandoned after the death of her mother. She lives alone with her adopted brother, Kang-Pyo. She accidentally meets Seung-Jae, the younger brother of Min-Jae. By chance, Yoo Min actually had a crush with Min-Jae, a doctor who treats her brother illness for a long time. To fight off his mother demand, Min Jae gets in an engagement contract with Yoo Min and they all end up living at Min-Jae's house. Unexpectedly, Yoo Min and Seung-Jae are going to the same high school. From there, Seung-Jae secretly loves Yoo Min. On the other hand, Yoo Min's father who got amnesia from a car accident is looking for her again after 15 years old she had been abandoned by her neighbors. The conflict comes when the people who living in Min Jae's house are actually related to Yoo Min's abandonment. They are the neighbours who stole the inheritance and abandoned her when she was four year old.

Tae Seok, Ji Yoon and Min Soo were best friends in high school. Tae Seok is a son of divorced parents are secretly in love with Ji Yoon when he knows Min Soo also have a feeling for Ji Yoon, but Ji Yoon do not have a feeling toward Min Soo. When Min Soo saw them kissing, he attemt suicide infront of them, leaving Ji Yoon’s and Tae Seok’s felt like they betrayed him.

7 years passes, Tae Seok is a CF producer and he is sober anymore unlike he was a student who wanders around and makes troubles. He has a new best friend named Dong Hwa. Accidentally, the woman Dong Hwa wants to marry is Ji Yoon, who was the first love of Tae Seok. Fate just played Tae Seok when he met Ji Yoon as his best friend’s girlfriend. Fate also played Tae Seok that the woman who loves him but whom he calls as friend is Min Soo’s sister. Tae Seok will make a decision between them, but he doesn’t want to make the same mistake he did 7 years ago.

But when Dong Hwa discovered Ji Yoon’s and Tae Seok’s past from Min Soo’s sister who told the relationships of her brother and them and Ji Yoon still loves Tae Seok after they met each other, best friend, Dong-hwa, was betrayed like in the past.

This drama attempts to send a message that any human being is beautiful by just existing in this world. People’s desire to have their say in everything, to succeed and to be beautiful stems from their deep-rooted disbelief in themselves. They are unable to love themselves the way they are. The underlying reason of the loss of interest in life is the disappointment with people. But even those who get disappointed with other human beings are negligent in loving their own selves.

The main character, Kim Min-ho was born into a family of a business tycoon but his family turned away from him because he was an illegitimate child. While having a hard time because of her mother’s re-marriages, Chung Soo-hee falls in love with Min-ho, who turns out to be a friend of her boyfriend, Yoo Ji-ahn. Frivolous Choi Mi-ree loves gangster Kang Ho-chul against her family's wishes. Oh Young-suk calls herself "crazy" and disguises herself in a lie. All these people are linked together by the mute owner of an eatery in the neighborhood, an old woman named Mi-young.