The hero and heroine have been childhood sweethearts and love each other deeply, but due to various misunderstandings and the tricks of fate, they have never been able to truly come together. The male protagonist chooses to leave his hometown in order to pursue his career, while the female protagonist is forced to marry someone else due to family reasons. Many years later, the two reunited, only to find that their lives had been turned upside down. Although they still love each other deeply, the shackles of reality and past regrets prevent them from continuing their relationship. In the end, the heroine died of illness, and the hero spent the rest of his life in regret.
Concept: Missed love and irreparable regret