It tells the story of junior high school student Qiu Zhichen who met Japanese transfer student Oda Yoko during the pressure of the junior high school entrance examination and boring study life, and was addicted to the fragrance of jasmine on her body and her voice and smile. The two formed an unspoken love. Later, due to unavoidable family reasons, Oda Yoko left China and returned to Japan; After graduating from junior high school, he was admitted to a high school known as the "grey zone". However, in the first year of high school, he met Lu Lu, who had the same jasmine fragrance as Oda Yeba but had a completely different personality. The two fell in love and became an enviable couple. However, the good times did not last long. In the second year, Qiu Zhichen was granted a place as an exchange student between the school and Japan.