Loving someone is not without reason, but once you start falling in love, no matter what happens, you love someone. The reason has long been forgotten. In the end, even if you are hurt all over, you will never look back. Five years ago, there was an ambiguity that seemed to be nothing, and it exuded a faint fragrance. However, if you pass by each other once, will it leave eternal regrets in your life? Can the unspoken confession five years ago be redeemed five years later? Can the silent protection you were willing to protect when you were young, and the forced departure later become the price of winning someone's heart five years later?