Butterfly Effect po Zhao Yibei is an adventure action novel written by Zhao Yibei. It tells the story of Nick and his friends celebrating his girlfriend Julie's birthday in the suburbs, but there was a car accident on the way back, and Julie was unfortunately seriously injured and died. Nick was very sad. A year passed quickly, and one day Nick found that he could go back to the past story by looking at old photos.

Nick stopped Julie's death in the past and married her and had children. However, when Nick came back to reality, he found that the real Julie was not the person he used to know. After many trips, Nick found that every time he changed something, it would have a far-reaching impact on the future, and new unsolved mysteries appeared.

In the end, Nick found that the number of times he crossed was limited. When he tried to cross again, he couldn't go back. He realized that he must carefully choose the time point of each crossing to avoid more consequences. Finally, Nick chose to go back to the past and celebrate Julie's birthday with friends to avoid the tragedy.

Through Nick's experience, this novel explores the issues of time travel and causality. It reminds people that even if we have the ability to change the past, we must use it carefully, because every small change may have a far-reaching impact on the future. At the same time, the novel also expresses the pain of losing a loved one and the desire to explore and pursue time travel.