Because of political reasons, princess Li Rong and Pei Wenxuan got married at the age of 18. In the end they drifted further and further afar from each other. After 20 years of a loveless marriage, they were manipulated into turning against each other, leading to their deaths. However, they wake up back at 18, before their marriage, facing the hardest time of their lives. The two of them are given second change together, to save those around them.
A mediatised married couple who no longer love each other is highly optimistic about getting a divorce. However, external circumstances will get in their way and they will have no other choice but to work hand in hand to reach their ultimate goal: getting a divorce.
The series revolves around the journey of music producer Wang Po Han and his assistant An Yi Qi to find the copyright owner of the mysterious song for their artist, A-Lin. They also came across a diary belonging to K who is the producer of the mysterious song and traveled into the life story of K through the diary. The diary tells the story of K and Cream, two orphans who journey through life and share experiences in sadness and joy together. However, K is diagnosed with fatal leukemia cancer. Knowing that Cream's biggest fear is to be left alone, K keeps the fact that he has terminal cancer a secret.
Woo Ah-Jin lives a luxurious life due to her wealthy father-in-law, but her father-in-law's finances become decimated and her husband betrays her. Woo Ah-Jin's life hits rock bottom. Park Bok-Ja is a mysterious woman and she hides her heartbreaking story. She brings about fierce hardship on Woo Ah-Jin.
Ichiro is a PE teacher in 1986 feared by his students for a "tough love" approach, harsh tongue and frequently “inappropriate” behavior. He’s also a dad trying to raise a rebellious daughter after having lost his wife to illness. When he gets transported in time to 2024, he encounters modern sensibilities that teach him about empathy but also gives people of today a reason to rethink their own political correctness in this time traversing comedy about change.
Cindy, a sharp and restless teenager, grows up happily in the high society of San Pedro Garza García in Nuevo León. When she and her longtime friends enter coeducational high school for the first time, Cindy questions the role of "princess" and the search for "prince charming" she's always been taught. In her freshman adventures, Cindy learns that pleasing others doesn't matter as much as finding herself.