Jiang Guangming found out that Tang Xun brought a puppy, Huajiao, with him when he checked into the seaside hotel.The hotel attendant Jiang Na once helped Tang Xun walk his dog.Now Jiang Na has also resigned, but a man named He Peng often comes to inquire about Jiang Na. Unexpectedly, He Peng and Gu Jiming also know each other. The relationship between the three people is complicated and confusing.Occasionally, Jiang Guangming also found Jiang Na's notes and a stack of blank manuscript paper among the things she left behind. What's even more bizarre is that the imprints on the manuscript actually contained part of the contents of "Black Rain".