The story of domestic help who work for rich households. No Soon Geum is one of these housekeepers; despite the master-maid heirarchy, she's bold, fearless, and unafraid of doing hard work in order to support herself. As a child, Soon Geum had dreamt of living a grand life in a Cinderella story, complete with her own white knight, but that dream had faded as reality took over. However, she reaches a turning point in her life when she is hired as a maid for the rich and handsome Kang Gun Woo.

Go Ni suffers an incredible loss when his mother and stepfather die because of Young Min. He later ends up in jail where he meets people who will change his life forever. Go Ni learns from a top tazza player in hopes of getting revenge.

Park In Soon is an ex-murder convict who accidentally killed a person in high school and served time in prison for her crime. In her school days, thanks to her outstanding looks, she received a lot of love from people. However, after the murder incident, she wears tinted glasses and is afraid to meet people's eyes. However, she's a tough woman who hasn't lost hope, and longs for happiness. Yoo Sang Woo is In Soon's childhood friend who moved away. They lost touch with each other. Sang Woo puts In Soon on a high pedestal but when he finds out that In Soon killed somebody, he is shocked and tries to distance himself from her.

Bong Dal Hee (Lee Yo Won) is a first year resident doctor who strives to become a surgeon despite her heart problem. She works under Dr. Ahn Jong Geun (Lee Bum Soo), a cardiac specialist, and even though they don't get off to a good start, the two grow fond of each other as time goes by. Dr. Lee Geon Wook (Kim Min Joon) divorced his wife, Dr. Jo Moon Kyung (Oh Yoon Ah), after he found out that his 6-year-old son was actually fathered by another man before they married. He still has feelings for her, but feels betrayed and cheated. This medical drama portrays the lives of resident doctors, their ups and downs, depicting crisis in a hospital as well as politics among its management staff.

Someday is about four different people's story about love.Hana Yamaguchi (Bae Doo-Na) was a successful young cartoonist in Japan. Abandoned by her parents and brought up by her grandma, she was cold and aloof and did not believe in love which to her was only a simple biological response. When the elderly neighbourhood street sweeper died, she discovered the affection between him and her neighbour which lasted 60 years. Hana could not understand this kind of love, so she decided to trace her neighbour's footstep to Korea when she disappeared with her lover's ashes.Go Jin Pyo (Kim Min Joon) was a doctor who was a comic book fan of Hana. He was overjoyed in meeting Hana and believed that he was in love for the first time in his life. He decided to help Hana in fulfilling her wish to look for her neighbour and enlisted the help of a private eye, Lee Seok Man (Lee Jin Wook).Lee was the sole survivor of a car accident whereby his parents and brother were killed. He carried a lot of guilt towards the parents of the other victim and did his best to help out even at the expense of owing money to the loan sharks.Hye Young (Oh Yoon Ah) was a PD of animation projects and a close friend of Jin Pyo. she didn't realize that she was in love with him till Hana appeared.In bringing her neighbour's love story to fruition and published in print, the process changed the lives and outlook on love for these four people.

The president's daughter, Yoon Jae-hee (Jun Do-yeon) is a Korean diplomat in Prague. She has only recently recovered from a devastating break up five years earlier with Ji Young-woo (Kim Min-joon), the son of a prominent Korean businessman. Choi Sang-hyun (Kim Joo-hyuk) is a detective who goes to Prague searching for his ex-girlfriend Hye-joo (Yoon Se-ah). Hye-joo broke up with Sang-hyun over the phone from Prague and Sang-hyun can not except it.

Sang-hyun meets Jae-hee in Prague and misunderstandings abound. Eventually the two help each other and become friends. When they return to Korea love blossoms, but their respective ex’s and very different social status put it to the test.

A westernized Irish adoptee, Joong-Ah inevitably flies back to Korea to confront her past and to see the country she is really from, only to fall in love with her brother, Jae-Bok. Their love is painful, as they are never meant to be together as lovers, but merely as brother and sister. The show’s message is that there is no such thing as noble innocent love and that love is adversity itself. Therefore, love mustn’t be impeded by so-called "destiny" or family, no matter how ironic or difficult the case may seem. Although destiny is cruel and arduous, the two young lovers radiate pure happiness. The show describes how love survives the tragic bondage of family, destiny and romance.

Source: MBC Global Media