Unassuming high school girl Jan-di stands up to — and eventually falls for — a spoiled rich kid who belongs to the school's most powerful clique.

When the South Korean Empire's emperor gets sick, the government tries to seek the princess for the crown prince, Lee Shin. Although Shin is already in love with a ballerina, Min Hyorin, Shin has to get married to an ordinary girl, Shin Chaegyeong.

Han Ji-eun is a naive writer who got swindled out of everything she owned including her house by her best friends. Stranded in China, She managed to borrow money from an actor Lee Young-jae to return to Korea. On her return, she found out that her house was bought by Lee Young-jae. In an attempt to get her possessions back, she entered in a contract marriage with Young-jae for one year. In spite of losing all, Ji-eun manages to be cheerful and takes things in strike and the business relationship between the two becomes personal as they start to rely and care for each other.

A rookie producer joins the Korean Broadcasting System to be near his secret crush and enters the madcap world of network TV, where ratings rule.

Dan-Bi is a senior high school student. She has a special ability which allows her to transport to anywhere on rainy days. For her university entrance exam, Dan-Bi can't deal with the pressure and runs off to a playground. Without knowing why, she goes into a puddle and finds herself transported to the Joseon period. There, she meets Lee Do. He is a young King of the Joseon period. Lee Do is in a difficult situation due to droughts and the spread of an epidemic.