Tea Soul is a Japanese novel. Two descriptions of rain have different effects. One was that the beginning of the novel described the scene and atmosphere of the rainy day. The author sets the tone for the beginning of the story by describing the gloomy, humid, and cool atmosphere of the rainy day. At the same time, it also made the readers feel the uncertainty and mystery of the rainy day, which provided imagination for the development of the story. The other was the description at the end of the novel, which described the protagonist walking alone in the rainy night. Through describing the protagonist's lonely walking in the rainy night, the feeling of the rain hitting his face and the loneliness in his heart, the author expressed the loneliness and loneliness in the depths of the protagonist's heart and also provided hints for the ending of the story. In summary, the two descriptions of rain in Cha Hun's novel played a role in exaggerating the atmosphere, shaping the characters, and expressing emotions.