Du Shiniang angrily sank the treasure chest. Liu Yuchun was one of the characters in the plot of the ancient novel, Dream of the Red Chamber. The following is an analysis of the meaning of Liu Yuchun's character setting: Liu Yuchun was a wealthy businessman. His family had a lot of wealth, but he did not hesitate to betray his class and dignity in order to pursue love and finally committed suicide. This background setting reflected the social class division and the distortion of love in ancient society. Character: Liu Yuchun is a selfish, hypocritical, and cold person. Not only did he betray his class and dignity to pursue love, but he was also very cold and heartless in the face of his lover's betrayal and pain. His selfishness and hypocrisy not only reflected the character image of the ancient merchant, but also showed the dark side of human nature. 3. The significance of the character setting: The significance of Liu Yuchun's character setting is to criticize the class division of ancient society and the distortion of the concept of love by describing his image and story, and at the same time reveal the dark side of human nature. This character setting also provided important clues for the development of the novel's theme and plot. Through the image of Liu Yuchun, the story of Du Shiniang sinking the treasure chest in anger reflects the class division of ancient society and the distortion of the concept of love. At the same time, it also reveals the dark side of human nature, which gives readers a deep revelation and reflection.