When they first met, Mu Yi knew nothing about Ji Yifeng.
When they were passionately in love, Ji Yifeng wrote on the photo of him and Mu Yi: You are the only one for me.
After the breakup, Mu deleted all contact information about Ji Yifeng one by one.
It wasn't until 4 years later that she contacted him.
Concept: First love is beautiful, but there are not many loves that last forever.