A pair of people from generation to generation. Some people say that falling in love with that person at the age of 17 will be the love of your life. At the end of her senior year of high school, she met him suddenly and fell in love at first sight, which ignited the brightest light in their lives. The young Su Li was persistent and insecure. Tan Jianbin said: You are like a hedgehog. Your thorns are your protective color, but they also hurt the person who approaches you. The girl's sensitivity and temptation finally made the young man feel weak, and the two gradually drifted apart and lost their books. On New Year's Eve in 2013, he sent his last message: "No, you hid yourself." Su Li's heart jolted and tears fell: she was finally going to lose him. She didn't know and didn't dare to reply to him, and he didn't look for her again. From then on, it was like two strangers who had never met before. In our lifetime, we meet each other on a narrow road, we can't keep them, we can't calculate them, and the years are fleeting. Destiny is fate, love is God's will, but pain is beyond God's control. Three years later, when they met again, the two of them seemed to have the same eyebrows as before, but can the pain that spanned three years between them be healed? Can the knot that was too late to be untied at that time be untied? Can the words that were left unsaid that year be spoken now? Where will the relationship between the two people go? They gave all their youthful feelings to that person, but in the end they each licked their wounds secretly. This time, can they see the line of return of love?