Hello, respected user! You mentioned the novel "If We Cherish Each Other" written by Lan Shui. This was a classic fantasy novel about the love story between the protagonist, Bai Yun, and the heroine, Zi Ning. The story in the novel was fascinating, the characters were vivid, and the emotional descriptions were exquisite. It was deeply loved by the readers. If you have any questions about this book or want to know more information, please feel free to contact me. I will do my best to help you.