This drama is adapted from the novel of the same name. It tells the story of Hagiwara Kazuaki (Muto Jun), who is worried about the sexless life with his cohabiting lover; and Hanai Zheng (Ito Asuyo), who lives with his childhood sweetheart who he has always loved, even though he knows that it cannot be realized. One day, a text message sent by Kazuaki is mistakenly delivered to Zheng. From that day on, the two began a wonderful communication without knowing each other's identity. Because they like each other, they want to touch each other and hug each other. Both of them have the same unsatisfied desire, and the distance between them is gradually shortened. The continuous drizzle gradually gathers into a fierce torrent, drowning the two together...