Unfortunately, I didn't know of a novel called " Summer Night " or " Summer Night ". However, based on what I've learned from the web novels, there might be some novels where the male lead is called Ye Lingtian and the female lead is called Xia. In the plot, the relationship between the male and female leads is that of a fiancée and fiancé. However, I need more information from you to help you search for the specific novel.