Zheng Qing is innocent and kind-hearted, and has a crush on her neighbor Cheng Hao, who is 6 years older than her. Before graduating from college, she sneaked into the city where Cheng Hao worked, hoping to make him realize his feelings and respond. Unexpectedly, Cheng Hao already has a girlfriend. His love rival Qi Deyin is fair-skinned, beautiful and has high emotional intelligence. In contrast, Zheng Qing cannot help but feel inferior and is full of doubts and uneasiness about her original longing...