According to the information you provided, I recommend the modern romance novel, Spring Breeze Entering the South of the City, to you. Although it was not directly related to the title of the book, it had the keyword "South of the City" and was also related to the scene "by the window." The story described the process of the male and female protagonists gradually becoming familiar with each other and attracting each other from a chance encounter. It was written very sweetly and was more suitable for readers who wanted to read some light-hearted, happy, and sweet plots. I hope you like this fairy's recommendation. Muah ~😗