**Two-way redemption across time and space**: Lin Xiaoxia established contact with Zhou Ye 20 years ago through her diary, influencing each other's lives.
The collision of 2003 (the era of non-smartphones) and 2023 (the digital era) creates an interaction that coexists with humor and emotion.
The female protagonist knows the future and can "predict" events (such as the stock market and technology trends). The male protagonist therefore counterattacks, and the readers enjoy the "God's perspective" feeling.
