This article has a characteristic of essay on < Sadaeki > of Hwang, Joongyoon. The main contents of message is about identifying that this work can be the novel of dynasty change created on the basis of circular reasoning. This is a fable or allegorical novel according to work`s contents. And also it has the feature of allegorical dynasty change novel on the point of that the flow of season matches the dynasty change. The writer analyzed matching up the change of season with the character`s personality in order to show it. The realistic features about the change of dynasty were drawn from the contents of < Sadaeki > on the basis of the result. < Sadaeki > was compared with the heroic novel including the dynasty change. As a result of it, while the heroic novel including the dynasty change suggested concretely the grounds like `celestial ground`, `realistic ground` and `humane ground`, < Sadaeki > suggested the realistic ground. Therefore < Sadaeki > has the feature of personification novel about the dynasty change on the basis of reality.