Bai Ze loves Ran Ran very much. Although Bai Ze hurt Ran Ran once, Ran Ran felt heartbroken and secretly vowed not to love Bai Ze anymore and left alone. But when Ran Ran returns, can she still resist Bai Ze's love? ! Gu Zhaozhao and Gu Ningshu, another couple, happy enemies, a "love letter" brings them together. When mistresses appear one after another, how should Ran Ran face them? Let's see how Ran Ran fights off mistresses and Bai Ze grows old together.