In the first world: Su Lingxuan is a sophomore in high school, and his father is an anti-drug hero. Before he was born, he died in the line of duty and was posthumously considered a martyr! His mother, who was also a criminal police officer, had difficulty giving birth to him and left him after giving birth to him. He has been dependent on his grandmother since he was a child. Because he wanted to reduce the financial burden on his grandmother, he joined the gang, but was used by the gang to sell drugs.
In the second line of the world: Su Lingxuan's father died in the line of duty, and his mother, Wang Sijia, was grieved when she was pregnant and failed to save the child. Only Wang Sijia survived.
In the third line of the world: Su Lingxuan's father Su Jianfeng successfully killed the drug dealer, but because he failed to send his pregnant wife to the hospital in time, neither his wife nor the child survived. Only Su Jianfeng survived.
The mother in the second world and the father in the third world traveled through time and space to the first world, rescued their son, and successfully attacked drug dealers. The family has been reunited ever since.
Concept: Traveling through non-parallel time and space