**Novel Outline:**
Three months after the breakup, Zhou Nan unexpectedly reunited with his ex-girlfriend, rekindling their old relationship and getting back together. However, the sweetness was short-lived. After his girlfriend went to study abroad, he gradually became indifferent. In the end, Zhou Nan discovered that she had already found a new love. When she was frustrated, her ex-girlfriend suddenly returned to China, confessed her betrayal and begged for forgiveness. When Zhou Nan hesitated, she was seriously injured in a car accident. On her deathbed, she confessed that she had never really let go of him. Zhou Nan understood in his grief that some love cannot be regained if it is missed, and finally moved on with regrets.
Concept: urban romance
