An Qiu's mother died in a hit-and-run accident on An Qiu's birthday.
Perhaps it was God's will that An Qiu returned to the past due to an accident. An Qiu was determined to save his mother who had been miserable for half her life.
When her mother was in her teens, she was still in her prime. She was naive and ignorant of the world. An Qiu just wanted to protect her and cut off her suffering from the source.
An Qiu: "People have been telling me since I was a child that if it weren't for me, my mother would be better off than she is now, so I hope she can be happy, even without me."
An Qiu: "If I have a choice, I still want to be your daughter, but let's forget it."
An Qiu: "I hope you are healthy, happy and worry-free for a hundred years!"
Mission: Knowledge is power