Some people say that the most beautiful love in the world is that of childhood sweethearts, from the purest age all the way to old age. When they were children, Li Jiaheng and Jiang Changwan were childhood sweethearts, so cute. In the Mood for Love, joy, laughter, tears, sourness, scars and growth. In the good times, the two people on the road to the end of the world began to gradually deviate, farther and farther away. In the past, Li Jiaheng said with firm eyes and a serious tone: "Jiang Changwan, remember, you must never forget your original intention, and you will always succeed." But when Jiang Changwan grasped his dream and wanted to spread his wings and fly, he found that he was like a kite with broken strings, and he was no longer behind him. Returning full of stars and covered with glory, it is difficult to change a relieved smile. Li Jiaheng, we started when we first met, can we still end when we grow old?