Min Soo is a 14-year-old boy who is engaged to a woman 7 years older than him. As he knows that the woman likes another man, he makes a wish so that he can protect his love. As the result of his wish, he becomes a 25-year-old man. Tae Ri is a well-educated woman who comes from a wealthy family. After being hurt by her first love, she doesn't believe in love anymore. But, as Min Soo suddenly appears before her, she starts to have feelings for him...

Music executive Goo-Joo (Park Ye-Jin) left South Korea 3 years ago after the death of vocalist for idol band Mr. Children. She now returns to South Korea. At the airport her suitcase is lost. Goo-Joo's suitcase is mistakenly taken by travel guide assistant Yoo-Jin (Ji Hyun-Woo).Goo-Joo is offered a job by Hee-Moon (Kim Su-Ro) who runs top talent agency Star Music. She turns the offer down and instead seeks out the remaining members of Mr. Children to reform the group. Hyun-Yi, Jio and Ricky all gather together again but they need a lead singer. Goo-Joo decides to hold an open audition to find the next vocalist for Mr. Children.Meanwhile, Goo-Joo calls her cellphone, which was in her suitcase, and talks with travel guide assistant Yoo-Jin. They make an arrangement so Goo-Joo can pick up her suitcase and phone. In the past, Yoo-Jin trained with a band for talent agency Star Music, but the group was kicked out from Star Music. He now works several part-time jobs and at night plays with an indie band in a bar. One day, the owner of the bar asks the band to take part in the audition held by Goo-Joo.At the audition Yoo-Jin and Goo-Joo are both surprised to see each other again. Yoo-Jin's band performs, but Goo-Joo asks to hear just Yoo-Jin. He refuses to perform alone and leaves the audition with his band. Later that day Yoo-Jin's band, seeing no hope for their careers, decides to disband. Music executive Goo-Joo still hasn't given up hope on Yoo-Jin and follows him around daily, hoping to persuade him to front Mr. Children ....

Music executive Goo-Joo (Park Ye-Jin) left South Korea 3 years ago after the death of vocalist for idol band Mr. Children. She now returns to South Korea. At the airport her suitcase is lost. Goo-Joo's suitcase is mistakenly taken by travel guide assistant Yoo-Jin (Ji Hyun-Woo).Goo-Joo is offered a job by Hee-Moon (Kim Su-Ro) who runs top talent agency Star Music. She turns the offer down and instead seeks out the remaining members of Mr. Children to reform the group. Hyun-Yi, Jio and Ricky all gather together again but they need a lead singer. Goo-Joo decides to hold an open audition to find the next vocalist for Mr. Children.Meanwhile, Goo-Joo calls her cellphone, which was in her suitcase, and talks with travel guide assistant Yoo-Jin. They make an arrangement so Goo-Joo can pick up her suitcase and phone. In the past, Yoo-Jin trained with a band for talent agency Star Music, but the group was kicked out from Star Music. He now works several part-time jobs and at night plays with an indie band in a bar. One day, the owner of the bar asks the band to take part in the audition held by Goo-Joo.At the audition Yoo-Jin and Goo-Joo are both surprised to see each other again. Yoo-Jin's band performs, but Goo-Joo asks to hear just Yoo-Jin. He refuses to perform alone and leaves the audition with his band. Later that day Yoo-Jin's band, seeing no hope for their careers, decides to disband. Music executive Goo-Joo still hasn't given up hope on Yoo-Jin and follows him around daily, hoping to persuade him to front Mr. Children ....

An ordinary college student, Lee Seol, finds out she's a princess. The grandson of Daehan Group, Park Hae Young, is put in charge of educating Seol on proper etiquette.

Lee Min Chul is the Korean male version of Paris Hilton. He meets an ambitious woman and marries her. One of her goals is to become the first lady of their nation. She grooms Min Chul into a successful corporate leader.

Lee Soo-jung (Ha Ji Won) is a travel agent who is seeking her good luck in Bali after a harsh and unforgiving childhood. She meets Jae-min (Jo In Sung), Kang In-wook (So Ji Sup), and Young-joo (Park Ye Jin) in Bali, three seemingly perfect people entangled in a triangle of love. When Lee Soo-jung finds herself back in Seoul, her desire for success leads her to seek Jae-min for a job, unwittingly setting off a course of events that further complicate the love triangle.

What Happened in Bali is a drama that reveals the inner materialistic desires of people. It reflects upon the sometimes ugly (but truthful) side of man where nothing matters more than money.

Min-ah discovers a scarlet-covered diary as she is hurrying to school. She has a brief hallucinatory experience when she opens it, initiating a series of strange occurrences which eventually draw Min-ah into the eerie world of the diary. In her desire to find out more about the diary, Min-ah feigns an illness, getting permission to lie down in the school's clinic. There she witnesses the reunion of Hyo-shin and Shi-eun... The day in the girls' high school is half over, and the students are preoccupied with the trauma of getting their physical checkups. Suddenly their hustle and bustle is abruptly interrupted by a sharp scream which announces the death of Hyo-shin... Soon, her ghostly entity will linger over everyone's secret..