The TV series "Long Distance" was released in mainland China in 2015. The main story of this TV series is the love story of China's educated youth in the last century. The simple feelings of that era also made many people have a deeper yearning for pure love after watching the TV series. The love story spanning 30 years has also made this film a higher sublimation in terms of narrative plot. 1976 was the climax of the development of the educated youth generation in China. In a certain educated youth spot, a person who likes to play the violin and an educated youth named Zheng Xiangdong successfully walked together. They also developed an attachment to each other in the follow-up life. After the two came together, they separated because of betrayal and suspicion. There were many emotional cracks and difficulties. But with their respective efforts, they overcame these difficulties and came together again. They went through many twists and turns, and although they didn't get together in the end, looking back 30 years later, they managed to find their yearning for youthful love.