Two years ago, Xu Fushen committed suicide, and the last person he saw was Chen Luzhi.
When Chen Luzhi learned that Xu Fushen had committed suicide due to depression, he realized that he had never gotten over the death of his parents.
The final blow that caused Xu Fushen to commit suicide was that he knew the reason for his parents' suicide. It turned out that his father was the murderer of Chen Luzhi's parents. But when he knew that the person who came to see him that night was not passing by, and told himself that the person who was not his fault was the son of the couple his father killed, he committed suicide.
After Chen Luzhi found out that he had committed suicide, he found that he had returned to a year ago and wanted to save him.
But just when Xu Fushen was about to get better, he learned that his father's death was due to Chen Luchi's report.
From then on, sadomasochism slowly began
Intention: I hope there really is a medicine for regret in the world, and there is really a way to travel through time.