The last time Tang Li saw the old lady was in the summer vacation after the high school entrance examination. At that time, Tang Li was deeply involved in a long-lasting secret love. She confided her despair and bitterness to the old lady who came to visit her. In order to comfort and encourage her, the old lady told her a love story that died while waiting. It turns out that this is the love that the old lady has been silent for her whole life: I love you, buried deep in my heart. As the sun and the moon go by, and the annual rings change, I finally gather enough courage, but time has taken away the you I love.