A summer encounter, an opening of the heart, when Xu Yiren was 19 years old and Gu Zhengyu was 24 years old. The two people who should have never crossed paths still developed feelings for each other this summer. Xu Yiren always felt that she had unrequited love. Even though Gu Zhengyu greeted her, he never said "I love you". So when he was about to get engaged, Xu Yiren knew that this "unrequited love" should be over. Who knew that Gu Zhengyu ran to her and said what was in his heart? Does this confession mean that the wedding will not be held as scheduled or that the two of them will inevitably separate...