I have been secretly in love with Ye Yaoyu in high school for three years, and I have been in love with Jiang Xiying in college for four years. How long can you love someone, three years? Seven years? Ten years? When youth fades with time, Ye Yaoyu finally understands that some people are meant to be kept in their hearts. Time has finally completed this grand burial. Those who have missed it and the love hidden in the heart have finally grown old. The article is narrated in a narrative way. How many changes do you have to endure from campus to society? Do you feel that you no longer recognize yourself?