During Yu Ci and Yi Sheng's ordinary three years of high school, no seeds called "love" were sown. Unexpectedly, they met again, and through inadvertent observation, Yu Ci discovered that he seemed to like Yi Sheng, a girl he had always been unaware of. But before that, Xiao Qingmei confessed to him, and he agreed, and missed Yi Sheng again. The relationship between Yu Ci and Song Xiaohui for more than a year completely collapsed after Yu Ci decided to enlist in the army. They broke up, and Yu Ci officially joined the army. Yi Sheng, who never appeared again, became an excellent doctor. During a mission, Yu Ci was injured and they met again, but it didn't seem to be a very good memory. Yu Ci proposed a physical marriage, but Yi Sheng rejected it. From then on, Yu Ci also began to undergo tremendous changes, and they met again in the hospital, where they met Song Xiaohui. Song Xiaohui's teasing of Yu Ci was also heard by Yi Sheng. Faced with the changes in the family and this sudden relationship, she felt irritable for a while...