Mimi is a young girl who doesn't sleep well because of her fears.

Due to her lack of sleep, her insomnia causes her to encounter DJ Titan. He hosts the program Midnight Fantasy from three to five. And Mimi is his only listener.

She listens DJ Titan to find comfort and she is waiting to listen to him every night, causing her to go to study in a daze. Until she accidentally falls asleep in class and the teacher orders her and her classmate Tan to make a report together. Now she's not sure if she's happy with DJ Titan or secretly shaken by Tan.

The Central Plains has four countries which is Dongyue, Ximing, Southern Xinjiang, and Beiling, which divide the world equally. Modern secret agent Su Qing Ying failed a bomb demolition mission. Then, She crossing to other time era and became the fifth princess of Dongyue Kingdom with the same name and surname. Su Qing Ying woke up in a ruined temple, and all kinds of memories flashed, letting her know her identity and fate in this era. From the clues of the memories, she discovered that her fiance, Xuan Yuan Che, king of Ximing Kingdom, tricked her into the ruined temple and set a trap to try to destroy the marriage, but because of the identity of the secret agent, Su Qin Ying easily escaped this catastrophe. After escaping from the ruined temple, she met the male protagonist Jun Li Ye who was healing in the woods. In the night, Jun Li Ye, the regent of the Beiling, was angry and speechless at the sudden modern Su Qing Ying, who did not know that the fate of the two through the ages began.

Rerin, the textile professor goes to take vacation in Chiang Mai because she wants to have time to think over about her relationship with Thanin, her fiance. On her vacation, she meets Suriyawong, the owner of The Chang Restaurant in Chiang Mai who descends from the prince and Grandma Bua Ngern. Suriyawong falls in love at first sight with Rerin and feels like she's someone who he has longed for. However, Wongprajan, Suriyawong's relative and the owner of Le Laos Restaurant comes in to obstruct their love and declare herself as his fiancee.

Yoo Joo was born and lived in Gwangju for 30 years. Her original dream was to be a food photographer, and now she works as a photographer and marketing agent for an advertising company. As she entered her third year, her personality has changed a lot. In the past, she used to be arrogant and stubborn, but now she doesn't even put her mouth on, and only chooses good words to listen to clients.

Ching Wai (Chow Yun-fat) is a fresh graduate from university, and is hired by a jewelry company called Yu-Fook, and he rises up the career ladder quickly, due to his superb performance, and he forges a relationship with the Director's daughter, Fong Hei-man (Carol Cheng). The story continues smoothly, until an incident occurs. To pay his mother's (Tang Pik-wan) gambling debts, he embezzles company funds and is reported by the cunning Yuen Kei-cheung (Lee Tao-hung). Ching is sent to prison, where he meets and befriends a gangster chief Lung Koon-sam (Shih Kien), who helps him both in and out of prison. Ching gets a job at another jewelry company, and collaborates with Lung to expose Yuen's wrongdoings. Eventually, Yuen is caught, and Ching proposes to Fong. Ching Chan (Liu Wai-hung), is also another main character. Known as Ah Chan, he is an idle immigrant from the Mainland. He is forced to care for the Chings when Ching Wai is sent to prison. Unfortunately, Ching Chan commits a crime and is jailed, but manages to forge a family with his love Cheung Mei-po (Kong Ho-oi)

This drama depicts the in-fighting between women in the palace from the reign of Jungjong to Injong, particularly the power struggle featuring Queen Mun Jung and Jung Nan Jung, her sister-in-law, and the way they pulled the strings behind the scenes.