Har Ryu is a male socialite who is ordered to create a scandal to bring down a woman, Seo Hye Rim, who is trying to become South Korea's first female president.

A story of a rich man (Lee Joon Hee) who switches lives with a man who looks identical to him only the difference between them is the other man is poor (Oh Dae San). Seo Yeo Jin is a girl who studies at fashion design school in Paris but returns to Korea after her life is turned upside down when her father dies.

Na In Jung struggles with her love between the rather cold and rebellious Yong Ki and a successful businessman, Soo Hwan. Kang Yong Ki is a pop culture artist. He was separated from his first love, Jo Ann, and still carries the wound that he suffered from their relationship. His half sister is Joo Ran who is married to Soo Hwan. Soo Hwan begins an affair with In Jung but he only has ambition for the CEO position of Yong Ki's father's company. Soon after he discovers that his ambition does not fill the emptiness that he has inside and realizes he needs In Jung. But In Jung and Yong Ki have already fallen in love with each other. Will In Jung go back to her first love or stay with Yong Ki?

Sad Sonata is a love story about two men and one woman. The young Joon-young (Kwon Sang Woo), who was raised by his mother who sold liquor to American soldiers, met the blind Hae-in (Kim Hee Sun) and they became childhood sweethearts. Then, Hae-in immigrated to the U.S. following her aunt and her uncle[American soldier that married her aunt]. There she met Gun-woo (Yeon Jung Hoon), who was Joon-young's best friend and son of a very rich man. After she received a letter from Hwa-jung saying that Joon-young is dead, she accepted Gun-woo's love. After an operation, Hae-in was able to see again . The story picks up again when composer Joon-young, singer Hae-In, and music producer Gun-woo all meet again.

Jung-suh and Song-joo grew up together. They were always there for each other. Tragedy begins when Song Joo begins his studies overseas without Jung-suh. Jung-suh's father remarries Tae Mira. Mira takes in her two children from a previous marriage, Tae-hwa and Yuri. Yuri is envious of the life that Jung-suh leads and is determined to take everything away from her, including Song-joo. Tae-hwa begins to develop feelings for his stepsister, however Jung-suh still loves Song-joo. Five years later, tragedy occurs when Jung-suh gets into a car accident causing her to lose her memory. Together with Tae-hwa, they start anew. Song-joo is led to believe that she is dead. However, when they meet again one day, he is determined to remind her of the love they had for one another. When fate finally seemed to be on their side, Jung-suh is diagnosed with eye cancer.

Ho-Jung is a cute, naive girl who often falls head over heals with the wrong guys. Both Ho-Jung and Kyu-In, her neighbor, are idealistic about love. They start off on the wrong foot and treats each other as if they were siblings, constantly fighting. Ho-Jung's friend Cha Hee has a thing for Kyu-In and Ho-Jung later realizes that she too has feelings for him. Ho-Jae, Ho-Jung's brother, is a player, who has good physical features. Things start to get complicated for Ho-Jae when he falls for Ho-Jung's friend Soo-Ji, who does not have a physical appeal but has a good personality and intelligence.