Genjimonogatari uses as a main method of forming the relationship between characters and its theme. This paper investigated the expressed through the relationship between Genji, Tamakazura and between Ominokimi, Naidaijin and between Naidaijin, Omiya. The issue of in Genjimonogatari can be viewed from the perspective of the development of the story, the way of molding characters, and its theme. The narrative of shown in the relationship between Genji and Tamakazura highlights the uniqueness of their relationship. It is worth noting that Genji’s lust is depicted from the buddist perspective. The narrative of revealed from the relationship between Naidaijin and Ominokimi has the function of caricaturing their relationship. And it plays the role of highlighting the contradictory state of Naidaijin. Naidaijin‘s disloyalty to Omiya is closely related to the political rivalry between Naidaijin and Genji. Contrasted with deeply loyal Yugiri, Naidaijin clearly demonstrates the worldliness of a man of power.