Jin Yiye and Xiao Meiwen met at Yancheng Yanda Vocational School. The two experienced youth and growing pains together, but they were separated in the vast sea of people. There were reasons for personality, reasons for value orientation, and many reasons. When they entered their respective lives and gradually decided to forget the past, they found that they were gradually becoming passers-by in time. When the knots in their hearts were opened by the codes hidden in the romantic plots at that time, both of them began to calmly reflect and settle. In the end, they found their true love? Or go with the flow? Or silently, gradually forgotten?